diff --git a/packages/bottom-app-bar/src/BottomAppBar.svelte b/packages/bottom-app-bar/src/BottomAppBar.svelte
index 40781199d..7b1042bdb 100644
--- a/packages/bottom-app-bar/src/BottomAppBar.svelte
+++ b/packages/bottom-app-bar/src/BottomAppBar.svelte
@@ -172,7 +172,7 @@
   }
 
   function getTopAppBarHeight() {
-    return getElement().getBoundingClientRect().height;
+    return getElement()?.getBoundingClientRect().height;
   }
 
   let oldVariant: 'fixed' | 'static' | 'standard' | null = null;