diff --git a/services/core/java/com/android/server/wm/DisplayPolicy.java b/services/core/java/com/android/server/wm/DisplayPolicy.java
index 5bd8dd3caa7c4..664c0c43c1a7f 100644
--- a/services/core/java/com/android/server/wm/DisplayPolicy.java
+++ b/services/core/java/com/android/server/wm/DisplayPolicy.java
@@ -1527,9 +1527,14 @@ public class DisplayPolicy {
             }
         } else if (win.isDimming()) {
             if (mStatusBar != null) {
-                if (addStatusBarAppearanceRegionsForDimmingWindow(
-                        win.mAttrs.insetsFlags.appearance & APPEARANCE_LIGHT_STATUS_BARS,
-                        mStatusBar.getFrame(), win.getBounds(), win.getFrame())) {
+                // If the dim window is below status bar window, we should update the appearance
+                // region if needed. Otherwise, leave it as it is.
+                final int statusBarLayer = mStatusBar.mToken.getWindowLayerFromType();
+                final int targetWindowLayer = win.mToken.getWindowLayerFromType();
+                if (targetWindowLayer < statusBarLayer
+                        && addStatusBarAppearanceRegionsForDimmingWindow(
+                                win.mAttrs.insetsFlags.appearance & APPEARANCE_LIGHT_STATUS_BARS,
+                                mStatusBar.getFrame(), win.getBounds(), win.getFrame())) {
                     addSystemBarColorApp(win);
                 }
             }