diff --git a/src/bundle/Resources/public/scss/core/_custom.dropdown.scss b/src/bundle/Resources/public/scss/core/_custom.dropdown.scss
index 21e8ef9693..b7b4881002 100644
--- a/src/bundle/Resources/public/scss/core/_custom.dropdown.scss
+++ b/src/bundle/Resources/public/scss/core/_custom.dropdown.scss
@@ -130,7 +130,7 @@
         transform: scaleY(1);
         transform-origin: top center;
         transition: transform 0.2s $ibexa-admin-transition;
-        max-width: calculateRem(500px);
+        width: 100%;
         background: $ibexa-white;
         border: calculateRem(1px) solid $ibexa-color-base-dark;
         color: $ibexa-color-font;