diff --git a/ApiDemos/kotlin/app/src/main/java/com/example/kotlindemos/BasicMapDemoActivity.kt b/ApiDemos/kotlin/app/src/main/java/com/example/kotlindemos/BasicMapDemoActivity.kt
index fda018cf..b9bd3dc3 100644
--- a/ApiDemos/kotlin/app/src/main/java/com/example/kotlindemos/BasicMapDemoActivity.kt
+++ b/ApiDemos/kotlin/app/src/main/java/com/example/kotlindemos/BasicMapDemoActivity.kt
@@ -48,7 +48,8 @@ class BasicMapDemoActivity :
      * This is where we can add markers or lines, add listeners or move the camera. In this case,
      * we just move the camera to Sydney and add a marker in Sydney.
      */
-    override fun onMapReady(googleMap: GoogleMap) {
+    override fun onMapReady(googleMap: GoogleMap?) {
+        googleMap ?: return
         with(googleMap) {
             moveCamera(CameraUpdateFactory.newLatLngZoom(SYDNEY, ZOOM_LEVEL))
             addMarker(MarkerOptions().position(SYDNEY))