diff --git a/libs/WindowManager/Shell/tests/flicker/src/com/android/wm/shell/flicker/bubble/MultiBubblesScreen.kt b/libs/WindowManager/Shell/tests/flicker/src/com/android/wm/shell/flicker/bubble/MultiBubblesScreen.kt
index a558450f4ed89..1950e486f34b1 100644
--- a/libs/WindowManager/Shell/tests/flicker/src/com/android/wm/shell/flicker/bubble/MultiBubblesScreen.kt
+++ b/libs/WindowManager/Shell/tests/flicker/src/com/android/wm/shell/flicker/bubble/MultiBubblesScreen.kt
@@ -75,7 +75,7 @@ open class MultiBubblesScreen(testSpec: FlickerTestParameter) : BaseBubbleScreen
                     Until.findObjects(
                         By.res(SYSTEM_UI_PACKAGE, BUBBLE_RES_NAME)
                     ), FIND_OBJECT_TIMEOUT
-                )
+                ) ?: error("No bubbles found")
                 for (entry in bubbles) {
                     entry?.run { entry.click() } ?: error("Bubble not found")
                     SystemClock.sleep(1000)