diff --git a/castellum/recruitment/templates/recruitment/contact.html b/castellum/recruitment/templates/recruitment/contact.html
index 2b65ca9515acac0730817d5315410184bbab1e02..3b196f653355433999c1be95b0b3c51a39f2c6e0 100644
--- a/castellum/recruitment/templates/recruitment/contact.html
+++ b/castellum/recruitment/templates/recruitment/contact.html
@@ -139,9 +139,7 @@
             <label for="id_execution_url">{% translate 'Execution link' %}</label>
             <div class="input-group">
                 <input id="id_execution_url" class="form-control" value="{% absolute_url 'execution:participation-detail' study.pk object.pk %}" readonly>
-                <div class="input-group-append">
-                    <button type="button" class="btn btn-outline-secondary" tabindex="-1" data-clipboard="#id_execution_url" data-animation="success">{% translate 'Copy' %}</button>
-                </div>
+                <button type="button" class="btn btn-outline-secondary" tabindex="-1" data-clipboard="#id_execution_url" data-animation="success">{% translate 'Copy' %}</button>
             </div>
         </div>
 
diff --git a/castellum/studies/templates/studies/study_domains_study.html b/castellum/studies/templates/studies/study_domains_study.html
index 6b1afc7acb0d921da40fd345d1b5e367054c183f..67e592646c4e7c17fefdeb905e4eca336f6abc75 100644
--- a/castellum/studies/templates/studies/study_domains_study.html
+++ b/castellum/studies/templates/studies/study_domains_study.html
@@ -22,11 +22,9 @@
                         <label class="input-group">
                             <span class="visually-hidden">{{ domain|verbose_name:'key' }}</span>
                             <input id="domain_key_{{ domain.key }}" class="form-control text-truncate" value="{{ domain.key }}" readonly>
-                            <div class="input-group-append">
-                                <button type="button" class="btn btn-outline-secondary" tabindex="-1" data-clipboard="#domain_key_{{ domain.key }}" data-animation="success" title="{% translate 'Copy key' %}">
-                                    {% icon 'copy' label=_('Copy key') %}
-                                </button>
-                            </div>
+                            <button type="button" class="btn btn-outline-secondary" tabindex="-1" data-clipboard="#domain_key_{{ domain.key }}" data-animation="success" title="{% translate 'Copy key' %}">
+                                {% icon 'copy' label=_('Copy key') %}
+                            </button>
                         </label>
                     </div>
                     <div class="col flex-grow-0">
diff --git a/castellum/studies/templates/studies/study_list.html b/castellum/studies/templates/studies/study_list.html
index 64c791b1aa156be360c677e03dd5eaf996129693..fdc24efffdcf932c7adf34a1ce6558d9a5652bd0 100644
--- a/castellum/studies/templates/studies/study_list.html
+++ b/castellum/studies/templates/studies/study_list.html
@@ -11,9 +11,7 @@
             <form method="get" class="bg-light p-3 mb-2" aria-label="{% translate 'Filter' %}">
                 <div class="input-group mb-4">
                     <input type="search" class="form-control" name="{{ form.q.name }}" value="{{ form.cleaned_data.q }}" placeholder="{{ form.q.label }}">
-                    <div class="input-group-append">
-                        <button class="btn btn-primary">{% translate 'Go' %}</button>
-                    </div>
+                    <button class="btn btn-primary">{% translate 'Go' %}</button>
                 </div>
                 <hr>
                 <fieldset>
diff --git a/castellum/subjects/templates/subjects/participation_add.html b/castellum/subjects/templates/subjects/participation_add.html
index f4e3024939b8ef26e8b5f2dfe617847ec04d15a6..41e2bdb4aed76603cfc674f82092ad0ca08e0c3b 100644
--- a/castellum/subjects/templates/subjects/participation_add.html
+++ b/castellum/subjects/templates/subjects/participation_add.html
@@ -8,9 +8,7 @@
     <form class="mb-3" method="get" aria-label="{{ form.q.label }}">
         <div class="input-group">
             <input type="search" class="form-control" name="{{ form.q.name }}" value="{{ form.cleaned_data.q }}" placeholder="{{ form.q.label }}" autofocus>
-            <div class="input-group-append">
-                <button class="btn btn-outline-primary">{% translate 'Go' %}</button>
-            </div>
+            <button class="btn btn-outline-primary">{% translate 'Go' %}</button>
         </div>
     </form>