diff --git a/invokeai/frontend/web/src/features/regionalPrompts/components/RegionalPromptsEditor.tsx b/invokeai/frontend/web/src/features/regionalPrompts/components/RegionalPromptsEditor.tsx
index b7c9bdfa5c..ed6b90a541 100644
--- a/invokeai/frontend/web/src/features/regionalPrompts/components/RegionalPromptsEditor.tsx
+++ b/invokeai/frontend/web/src/features/regionalPrompts/components/RegionalPromptsEditor.tsx
@@ -30,7 +30,7 @@ export const RegionalPromptsEditor = memo(() => {
   const rpLayerIdsReversed = useAppSelector(selectRPLayerIdsReversed);
   return (
     <Flex gap={4} w="full" h="full">
-      <Flex flexDir="column" gap={4} flexShrink={0} w={430}>
+      <Flex flexDir="column" gap={4} minW={430}>
         <Flex gap={3}>
           <ButtonGroup isAttached={false}>
             <Button onClick={debugBlobs}>🐛</Button>