diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarInsetsController.kt b/quickstep/src/com/android/launcher3/taskbar/TaskbarInsetsController.kt
index 0b60e45..2103ebb 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarInsetsController.kt
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarInsetsController.kt
@@ -53,6 +53,7 @@
 import com.android.launcher3.taskbar.TaskbarControllers.LoggableTaskbarController
 import com.android.launcher3.testing.shared.ResourceUtils
 import com.android.launcher3.util.DisplayController
+import com.android.launcher3.util.Executors
 import java.io.PrintWriter
 import kotlin.jvm.optionals.getOrNull
 import kotlin.math.max
@@ -76,6 +77,7 @@
     private val gestureNavSettingsObserver =
         GestureNavigationSettingsObserver(
             context.mainThreadHandler,
+            Executors.UI_HELPER_EXECUTOR.handler,
             context,
             this::onTaskbarOrBubblebarWindowHeightOrInsetsChanged
         )