diff --git a/src/bundle/Resources/public/scss/_filters.scss b/src/bundle/Resources/public/scss/_filters.scss
index e29d4137af..5c54a83d17 100644
--- a/src/bundle/Resources/public/scss/_filters.scss
+++ b/src/bundle/Resources/public/scss/_filters.scss
@@ -98,6 +98,7 @@
         transform: scaleY(1);
         transform-origin: top center;
         transition: transform $ibexa-admin-transition-duration $ibexa-admin-transition;
+        z-index: 1;
 
         &--hidden {
             transform: scaleY(0);
diff --git a/src/bundle/Resources/public/scss/_trash-search-form.scss b/src/bundle/Resources/public/scss/_trash-search-form.scss
index afcbbfdd9c..98ec779992 100644
--- a/src/bundle/Resources/public/scss/_trash-search-form.scss
+++ b/src/bundle/Resources/public/scss/_trash-search-form.scss
@@ -61,6 +61,7 @@
         transform: scaleY(1);
         transform-origin: top center;
         transition: transform 0.2s $ibexa-admin-transition;
+        z-index: 1;
 
         &--hidden {
             transform: scaleY(0);