diff --git a/invokeai/frontend/web/src/features/controlLayers/components/CanvasEntityList/EntityListSelectedEntityActionBarInvertMaskButton.tsx b/invokeai/frontend/web/src/features/controlLayers/components/CanvasEntityList/EntityListSelectedEntityActionBarInvertMaskButton.tsx
index 2384f5dd416..361be5e70ef 100644
--- a/invokeai/frontend/web/src/features/controlLayers/components/CanvasEntityList/EntityListSelectedEntityActionBarInvertMaskButton.tsx
+++ b/invokeai/frontend/web/src/features/controlLayers/components/CanvasEntityList/EntityListSelectedEntityActionBarInvertMaskButton.tsx
@@ -3,7 +3,7 @@ import { useAppSelector } from 'app/store/storeHooks';
 import { useCanvasIsBusy } from 'features/controlLayers/hooks/useCanvasIsBusy';
 import { useInvertMask } from 'features/controlLayers/hooks/useInvertMask';
 import { selectSelectedEntityIdentifier } from 'features/controlLayers/store/selectors';
-import { isInpaintMaskEntityIdentifier } from 'features/controlLayers/store/types';
+import { isMaskEntityIdentifier } from 'features/controlLayers/store/types';
 import { memo } from 'react';
 import { useTranslation } from 'react-i18next';
 import { PiSelectionInverseBold } from 'react-icons/pi';
@@ -18,10 +18,15 @@ export const EntityListSelectedEntityActionBarInvertMaskButton = memo(() => {
     return null;
   }
 
-  if (!isInpaintMaskEntityIdentifier(selectedEntityIdentifier)) {
+  if (!isMaskEntityIdentifier(selectedEntityIdentifier)) {
     return null;
   }
 
+  const label =
+    selectedEntityIdentifier.type === 'regional_guidance'
+      ? t('controlLayers.invertRegion', { defaultValue: 'Invert Region' })
+      : t('controlLayers.invertMask');
+
   return (
     <IconButton
       onClick={invertMask}
@@ -29,8 +34,8 @@ export const EntityListSelectedEntityActionBarInvertMaskButton = memo(() => {
       minW={8}
       variant="link"
       alignSelf="stretch"
-      aria-label={t('controlLayers.invertMask')}
-      tooltip={t('controlLayers.invertMask')}
+      aria-label={label}
+      tooltip={label}
       icon={<PiSelectionInverseBold />}
     />
   );
diff --git a/invokeai/frontend/web/src/features/controlLayers/hooks/useCanvasInvertMaskHotkey.tsx b/invokeai/frontend/web/src/features/controlLayers/hooks/useCanvasInvertMaskHotkey.tsx
index fada792e748..51f9cae0480 100644
--- a/invokeai/frontend/web/src/features/controlLayers/hooks/useCanvasInvertMaskHotkey.tsx
+++ b/invokeai/frontend/web/src/features/controlLayers/hooks/useCanvasInvertMaskHotkey.tsx
@@ -3,7 +3,7 @@ import { useAssertSingleton } from 'common/hooks/useAssertSingleton';
 import { useCanvasIsBusy } from 'features/controlLayers/hooks/useCanvasIsBusy';
 import { useInvertMask } from 'features/controlLayers/hooks/useInvertMask';
 import { selectSelectedEntityIdentifier } from 'features/controlLayers/store/selectors';
-import { isInpaintMaskEntityIdentifier } from 'features/controlLayers/store/types';
+import { isMaskEntityIdentifier } from 'features/controlLayers/store/types';
 import { useRegisteredHotkeys } from 'features/system/components/HotkeysModal/useHotkeyData';
 import { useMemo } from 'react';
 
@@ -17,7 +17,7 @@ export const useCanvasInvertMaskHotkey = () => {
     if (!selectedEntityIdentifier) {
       return false;
     }
-    if (!isInpaintMaskEntityIdentifier(selectedEntityIdentifier)) {
+    if (!isMaskEntityIdentifier(selectedEntityIdentifier)) {
       return false;
     }
     if (isBusy) {
diff --git a/invokeai/frontend/web/src/features/controlLayers/hooks/useInvertMask.ts b/invokeai/frontend/web/src/features/controlLayers/hooks/useInvertMask.ts
index 342b984fb1c..2e3e35c3e9b 100644
--- a/invokeai/frontend/web/src/features/controlLayers/hooks/useInvertMask.ts
+++ b/invokeai/frontend/web/src/features/controlLayers/hooks/useInvertMask.ts
@@ -3,6 +3,7 @@ import { useCanvasManager } from 'features/controlLayers/contexts/CanvasManagerP
 import { canvasToBlob, canvasToImageData } from 'features/controlLayers/konva/util';
 import { entityRasterized } from 'features/controlLayers/store/canvasSlice';
 import { selectSelectedEntityIdentifier } from 'features/controlLayers/store/selectors';
+import { isMaskEntityIdentifier } from 'features/controlLayers/store/types';
 import { imageDTOToImageObject } from 'features/controlLayers/store/util';
 import { toast } from 'features/toast/toast';
 import { useCallback } from 'react';
@@ -17,9 +18,14 @@ export const useInvertMask = () => {
 
   const invertMask = useCallback(async () => {
     try {
+      if (!selectedEntityIdentifier || !isMaskEntityIdentifier(selectedEntityIdentifier)) {
+        return;
+      }
+
       const bboxRect = canvasManager.stateApi.getBbox().rect;
+      const maskType = selectedEntityIdentifier.type;
 
-      const adapters = canvasManager.compositor.getVisibleAdaptersOfType('inpaint_mask');
+      const adapters = canvasManager.compositor.getVisibleAdaptersOfType(maskType);
 
       if (adapters.length === 0) {
         toast({
@@ -43,7 +49,7 @@ export const useInvertMask = () => {
       fullCtx.fillStyle = 'rgba(0, 0, 0, 0)';
       fullCtx.fillRect(0, 0, bboxRect.width, bboxRect.height);
 
-      const visibleMasksRect = canvasManager.compositor.getVisibleRectOfType('inpaint_mask');
+      const visibleMasksRect = canvasManager.compositor.getVisibleRectOfType(maskType);
 
       if (visibleMasksRect.width > 0 && visibleMasksRect.height > 0) {
         const compositeCanvas = canvasManager.compositor.getCompositeCanvas(adapters, visibleMasksRect);