diff --git a/frontend/src/lib/components/PasswordArgInput.svelte b/frontend/src/lib/components/PasswordArgInput.svelte
index c9250eab6b25a..28c10a830fc3d 100644
--- a/frontend/src/lib/components/PasswordArgInput.svelte
+++ b/frontend/src/lib/components/PasswordArgInput.svelte
@@ -8,7 +8,7 @@
 	export let disabled: boolean
 
 	let path = ''
-	let password = value && !value.startsWith('$var:') ? value : ''
+	let password = value && typeof value === 'string' && !value.startsWith('$var:') ? value : ''
 
 	let isGenerating = false
 	async function generateValue() {