diff --git a/packages/SystemUI/src/com/android/systemui/scrim/ScrimView.java b/packages/SystemUI/src/com/android/systemui/scrim/ScrimView.java
index 1a5c9ee25b479..7530681c82b2d 100644
--- a/packages/SystemUI/src/com/android/systemui/scrim/ScrimView.java
+++ b/packages/SystemUI/src/com/android/systemui/scrim/ScrimView.java
@@ -294,7 +294,6 @@ public class ScrimView extends View {
 
     /**
      * Make bottom edge concave so overlap between layers is not visible for alphas between 0 and 1
-     * @return height of concavity
      */
     public void enableBottomEdgeConcave(boolean clipScrim) {
         if (mDrawable instanceof ScrimDrawable) {
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java
index bbde3c3e31447..b94b5d3c7e2bc 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java
@@ -547,9 +547,12 @@ public class ScrimController implements ViewTreeObserver.OnPreDrawListener, Dump
      * Set bounds for notifications background, all coordinates are absolute
      */
     public void setNotificationsBounds(float left, float top, float right, float bottom) {
-        mNotificationsScrim.setDrawableBounds(left, top, right, bottom);
         if (mClipsQsScrim) {
+            // "top - 1" to have 1 px of scrims overlap, see: b/186644628
+            mNotificationsScrim.setDrawableBounds(left, top - 1, right, bottom);
             mScrimBehind.setBottomEdgePosition((int) top);
+        } else {
+            mNotificationsScrim.setDrawableBounds(left, top, right, bottom);
         }
     }