diff --git a/files/renderer.php b/files/renderer.php
index 1cf7e3027f4..12a4eb0379a 100644
--- a/files/renderer.php
+++ b/files/renderer.php
@@ -949,9 +949,9 @@ class core_files_renderer extends plugin_renderer_base {
 <div class="file-picker fp-dlg">
     <p class="fp-dlg-text"></p>
     <div class="fp-dlg-buttons">
-        <button class="fp-dlg-butoverwrite btn">'.get_string('overwrite', 'repository').'</button>
-        <button class="fp-dlg-butrename btn"></button>
-        <button class="fp-dlg-butcancel btn btn-cancel">'.get_string('cancel').'</button>
+        <button class="fp-dlg-butoverwrite btn mb-1">'.get_string('overwrite', 'repository').'</button>
+        <button class="fp-dlg-butrename btn mb-1"></button>
+        <button class="fp-dlg-butcancel btn btn-cancel mb-1">'.get_string('cancel').'</button>
     </div>
 </div>';
         return $rv;
diff --git a/theme/boost/templates/core/filemanager_processexistingfile.mustache b/theme/boost/templates/core/filemanager_processexistingfile.mustache
index 18714ac05a4..875f358049f 100644
--- a/theme/boost/templates/core/filemanager_processexistingfile.mustache
+++ b/theme/boost/templates/core/filemanager_processexistingfile.mustache
@@ -1,8 +1,8 @@
 <div class="file-picker fp-dlg">
     <p class="fp-dlg-text"></p>
     <div class="fp-dlg-buttons">
-        <button class="fp-dlg-butoverwrite btn btn-primary">{{#str}}overwrite, repository{{/str}}</button>
-        <button class="fp-dlg-butrename btn btn-primary"></button>
-        <button class="fp-dlg-butcancel btn btn-secondary">{{#str}}cancel{{/str}}</button>
+        <button class="fp-dlg-butoverwrite btn btn-primary mb-1">{{#str}}overwrite, repository{{/str}}</button>
+        <button class="fp-dlg-butrename btn btn-primary mb-1"></button>
+        <button class="fp-dlg-butcancel btn btn-secondary mb-1">{{#str}}cancel{{/str}}</button>
     </div>
 </div>
\ No newline at end of file