diff --git a/gallery/src/main/java/cc/winboll/studio/gallery/CropActivity.java b/gallery/src/main/java/cc/winboll/studio/gallery/CropActivity.java
index 048a627..b08f012 100644
--- a/gallery/src/main/java/cc/winboll/studio/gallery/CropActivity.java
+++ b/gallery/src/main/java/cc/winboll/studio/gallery/CropActivity.java
@@ -312,7 +312,7 @@ public class CropActivity extends AppCompatActivity {
         View dialogView = getLayoutInflater().inflate(R.layout.dialog_crop_info, null);
         TextView infoText = dialogView.findViewById(R.id.info_text);
         ImageView previewImage = dialogView.findViewById(R.id.preview_image);
-        LinearLayout previewImageContainer = dialogView.findViewById(R.id.preview_image_container);
+        final LinearLayout previewImageContainer = dialogView.findViewById(R.id.preview_image_container);
         infoText.setText(info.toString());
         if (previewBitmap != null) {
             previewImage.setImageBitmap(previewBitmap);
@@ -349,4 +349,4 @@ public class CropActivity extends AppCompatActivity {
             originalBitmap = null;
         }
     }
-}
\ No newline at end of file
+}