diff --git a/frontend/src/lib/components/ArgInput.svelte b/frontend/src/lib/components/ArgInput.svelte
index 946e799af2..7f64214a7a 100644
--- a/frontend/src/lib/components/ArgInput.svelte
+++ b/frontend/src/lib/components/ArgInput.svelte
@@ -940,7 +940,7 @@
 									{#if value.startsWith('$res:')}
 										{@render resourceInput()}
 									{:else}
-										<div class="text-red-500">
+										<div class="text-red-500 text-xs">
 											Invalid string value: "{value}", expected array. Click add item to turn it
 											into an array.
 										</div>