diff --git a/packages/svelte/src/lib/components/KeyHandler/KeyHandler.svelte b/packages/svelte/src/lib/components/KeyHandler/KeyHandler.svelte
index 36206982..f6697cb2 100644
--- a/packages/svelte/src/lib/components/KeyHandler/KeyHandler.svelte
+++ b/packages/svelte/src/lib/components/KeyHandler/KeyHandler.svelte
@@ -23,7 +23,7 @@
   } = useStore();
 
   function isKeyObject(key?: KeyDefinition | null): key is KeyDefinitionObject {
-    return typeof key === 'object';
+    return key !== null && typeof key === 'object';
   }
 
   function getModifier(key?: KeyDefinition | null): ShortcutModifierDefinition {