diff --git a/packages/ui/src/elements/AppHeader/index.scss b/packages/ui/src/elements/AppHeader/index.scss
index 122bc6fa39a..28b8958d895 100644
--- a/packages/ui/src/elements/AppHeader/index.scss
+++ b/packages/ui/src/elements/AppHeader/index.scss
@@ -91,8 +91,8 @@
     &__controls-wrapper {
       display: flex;
       align-items: center;
-      flex-grow: 1;
-      width: 100%;
+      flex: 1;
+      min-width: 0;
     }
 
     &__step-nav-wrapper {