diff --git a/app/src/main/java/com/hippo/ehviewer/util/Ui.java b/app/src/main/java/com/hippo/ehviewer/util/Ui.java
index 5d328e3de..5270e8249 100644
--- a/app/src/main/java/com/hippo/ehviewer/util/Ui.java
+++ b/app/src/main/java/com/hippo/ehviewer/util/Ui.java
@@ -371,6 +371,7 @@ public class Ui {
             actionBar.setDisplayHomeAsUpEnabled(true);
             actionBar.setHomeAsUpIndicator(d);
             actionBar.setIcon(null);
+            actionBar.setElevation(dp2pix(4.0f));
         }
     }
 }