diff --git a/README.md b/README.md
index cce27f29..6746121e 100644
--- a/README.md
+++ b/README.md
@@ -153,7 +153,8 @@ type TransformAction =
   | 'zoomIn'
   | 'zoomOut'
   | 'close'
-  | 'switch'
+  | 'prev'
+  | 'next'
   | 'wheel'
   | 'doubleClick'
   | 'move'
diff --git a/src/Preview.tsx b/src/Preview.tsx
index 7ce76841..a28d5a1f 100644
--- a/src/Preview.tsx
+++ b/src/Preview.tsx
@@ -156,7 +156,7 @@ const Preview: React.FC<PreviewProps> = props => {
     event.stopPropagation();
     if (currentPreviewIndex > 0) {
       setEnableTransition(false);
-      resetTransform('switch');
+      resetTransform('prev');
       setCurrent(previewDataKeys[currentPreviewIndex - 1]);
     }
   };
@@ -166,7 +166,7 @@ const Preview: React.FC<PreviewProps> = props => {
     event.stopPropagation();
     if (currentPreviewIndex < previewGroupCount - 1) {
       setEnableTransition(false);
-      resetTransform('switch');
+      resetTransform('next');
       setCurrent(previewDataKeys[currentPreviewIndex + 1]);
     }
   };
diff --git a/src/hooks/useImageTransform.ts b/src/hooks/useImageTransform.ts
index 381c3ed4..47195db5 100644
--- a/src/hooks/useImageTransform.ts
+++ b/src/hooks/useImageTransform.ts
@@ -20,7 +20,8 @@ export type TransformAction =
   | 'zoomIn'
   | 'zoomOut'
   | 'close'
-  | 'switch'
+  | 'prev'
+  | 'next'
   | 'wheel'
   | 'doubleClick'
   | 'move'