diff --git a/Layout/default/Contractqueue/Index.php b/Layout/default/Contractqueue/Index.php
index abe46f6ce..c48014fb6 100644
--- a/Layout/default/Contractqueue/Index.php
+++ b/Layout/default/Contractqueue/Index.php
@@ -264,8 +264,8 @@
                                             <div class="input-group mb-3">
                                               <select class="edit-control form-control" data-val="<?=$contract->product_id?>" data-ov="<?=$contract->product_id?>"></select>
                                               <div class="input-group-append">
-                                                <button class="btn btn-primary" onclick="saveEdit('contract', <?=$contract->id?>, 'product')"><i class="fas fa-check"></i></button>
-                                                <button class="btn btn-secondary" onclick="toggleEdit('contract', <?=$contract->id?>, 'product')"><i class="fas fa-times"></i></button>
+                                                <button type="button" class="btn btn-primary" onclick="saveEdit('contract', <?=$contract->id?>, 'product')"><i class="fas fa-check"></i></button>
+                                                <button type="button" class="btn btn-secondary" onclick="toggleEdit('contract', <?=$contract->id?>, 'product')"><i class="fas fa-times"></i></button>
                                               </div>
                                             </div>
                                           </div>
@@ -278,8 +278,8 @@
                                             <div class="input-group mb-3">
                                               <input type="text" class="form-control edit-control" value="<?=$contract->matchcode?>" data-val="<?=htmlentities($contract->matchcode)?>" data-ov="<?=htmlentities($contract->matchcode)?>" />
                                               <div class="input-group-append">
-                                                <button class="btn btn-primary" onclick="saveEdit('contract', <?=$contract->id?>, 'matchcode')"><i class="fas fa-check"></i></button>
-                                                <button class="btn btn-secondary" onclick="toggleEdit('contract', <?=$contract->id?>, 'matchcode')"><i class="fas fa-times"></i></button>
+                                                <button type="button" class="btn btn-primary" onclick="saveEdit('contract', <?=$contract->id?>, 'matchcode')"><i class="fas fa-check"></i></button>
+                                                <button type="button" class="btn btn-secondary" onclick="toggleEdit('contract', <?=$contract->id?>, 'matchcode')"><i class="fas fa-times"></i></button>
                                               </div>
                                             </div>
                                           </div>
@@ -290,8 +290,8 @@
                                             <div class="input-group mb-3">
                                               <input type="text" class="form-control edit-control" value="<?=$contract->price?>" data-val="<?=$contract->price?>" data-ov="<?=$contract->price?>" />
                                               <div class="input-group-append">
-                                                <button class="btn btn-primary" onclick="saveEdit('contract', <?=$contract->id?>, 'price')"><i class="fas fa-check"></i></button>
-                                                <button class="btn btn-secondary" onclick="toggleEdit('contract', <?=$contract->id?>, 'price')"><i class="fas fa-times"></i></button>
+                                                <button type="button" class="btn btn-primary" onclick="saveEdit('contract', <?=$contract->id?>, 'price')"><i class="fas fa-check"></i></button>
+                                                <button type="button" class="btn btn-secondary" onclick="toggleEdit('contract', <?=$contract->id?>, 'price')"><i class="fas fa-times"></i></button>
                                               </div>
                                             </div>
                                           </div>
@@ -302,8 +302,8 @@
                                             <div class="input-group mb-3">
                                               <input type="text" class="form-control edit-control" value="<?=$contract->price_setup?>" data-val="<?=$contract->price_setup?>" data-ov="<?=$contract->price_setup?>" />
                                               <div class="input-group-append">
-                                                <button class="btn btn-primary" onclick="saveEdit('contract', <?=$contract->id?>, 'price_setup')"><i class="fas fa-check"></i></button>
-                                                <button class="btn btn-secondary" onclick="toggleEdit('contract', <?=$contract->id?>, 'price_setup')"><i class="fas fa-times"></i></button>
+                                                <button type="button" class="btn btn-primary" onclick="saveEdit('contract', <?=$contract->id?>, 'price_setup')"><i class="fas fa-check"></i></button>
+                                                <button type="button" class="btn btn-secondary" onclick="toggleEdit('contract', <?=$contract->id?>, 'price_setup')"><i class="fas fa-times"></i></button>
                                               </div>
                                             </div>
                                           </div>
@@ -334,8 +334,8 @@
                                                 <option value="36" <?=($contract->billing_period == 36) ? "selected='selected'" : ""?>>3-Jährlich</option>
                                               </select>
                                               <div class="input-group-append">
-                                                <button class="btn btn-primary" onclick="saveEdit('contract', <?=$contract->id?>, 'billing_period')"><i class="fas fa-check"></i></button>
-                                                <button class="btn btn-secondary" onclick="toggleEdit('contract', <?=$contract->id?>, 'billing_period')"><i class="fas fa-times"></i></button>
+                                                <button type="button" class="btn btn-primary" onclick="saveEdit('contract', <?=$contract->id?>, 'billing_period')"><i class="fas fa-check"></i></button>
+                                                <button type="button" class="btn btn-secondary" onclick="toggleEdit('contract', <?=$contract->id?>, 'billing_period')"><i class="fas fa-times"></i></button>
                                               </div>
                                             </div>
                                           </div>
@@ -346,8 +346,8 @@
                                             <div class="input-group mb-3">
                                               <input type="text" class="form-control edit-control" value="<?=$contract->billing_delay?>" data-val="<?=$contract->billing_delay?>" data-ov="<?=$contract->billing_delay?>" />
                                               <div class="input-group-append">
-                                                <button class="btn btn-primary" onclick="saveEdit('contract', <?=$contract->id?>, 'billing_delay')"><i class="fas fa-check"></i></button>
-                                                <button class="btn btn-secondary" onclick="toggleEdit('contract', <?=$contract->id?>, 'billing_delay')"><i class="fas fa-times"></i></button>
+                                                <button type="button" class="btn btn-primary" onclick="saveEdit('contract', <?=$contract->id?>, 'billing_delay')"><i class="fas fa-check"></i></button>
+                                                <button type="button" class="btn btn-secondary" onclick="toggleEdit('contract', <?=$contract->id?>, 'billing_delay')"><i class="fas fa-times"></i></button>
                                               </div>
                                             </div>
                                           </div>
@@ -392,8 +392,8 @@
                                             <div class="input-group mb-3">
                                               <input type="text" class="form-control edit-control" value="<?=$contract->matchcode?>" data-val="<?=$contract->crediting_matchcode?>" data-ov="<?=$contract->crediting_matchcode?>" />
                                               <div class="input-group-append">
-                                                <button class="btn btn-primary" onclick="toggleEdit('credit', <?=$contract->id?>, 'matchcode')"><i class="fas fa-check"></i></button>
-                                                <button class="btn btn-secondary" onclick="toggleEdit('credit', <?=$contract->id?>, 'matchcode')"><i class="fas fa-times"></i></button>
+                                                <button type="button" class="btn btn-primary" onclick="toggleEdit('credit', <?=$contract->id?>, 'matchcode')"><i class="fas fa-check"></i></button>
+                                                <button type="button" class="btn btn-secondary" onclick="toggleEdit('credit', <?=$contract->id?>, 'matchcode')"><i class="fas fa-times"></i></button>
                                               </div>
                                             </div>
                                           </div>