diff --git a/packages/ui/src/components/tool-call.tsx b/packages/ui/src/components/tool-call.tsx
index 28e935b2..3d00c900 100644
--- a/packages/ui/src/components/tool-call.tsx
+++ b/packages/ui/src/components/tool-call.tsx
@@ -608,6 +608,7 @@ export default function ToolCall(props: ToolCallProps) {
   createEffect(() => {
     // When global preference changes, reset per-tool-call overrides so palette changes apply.
     toolInputsVisibility()
+    setToolInputVisibilityOverride(null)
     setInputSectionOverride(null)
     setOutputSectionOverride(null)
   })