diff --git a/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java b/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java
index 4c7f9eb705c6f..06b93293b9ba6 100644
--- a/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java
+++ b/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java
@@ -432,7 +432,7 @@ public class WallpaperManagerService extends IWallpaperManager.Stub {
 
                         f = new FileOutputStream(wallpaper.cropFile);
                         bos = new BufferedOutputStream(f, 32*1024);
-                        finalCrop.compress(Bitmap.CompressFormat.PNG, 90, bos);
+                        finalCrop.compress(Bitmap.CompressFormat.JPEG, 100, bos);
                         bos.flush();  // don't rely on the implicit flush-at-close when noting success
                         success = true;
                     }