diff --git a/AdvancedImmersiveMode/.google/packaging.yaml b/AdvancedImmersiveMode/.google/packaging.yaml
index 2e2d2d4e9..c382e737a 100644
--- a/AdvancedImmersiveMode/.google/packaging.yaml
+++ b/AdvancedImmersiveMode/.google/packaging.yaml
@@ -6,7 +6,7 @@
 ---
 status:       PUBLISHED
 technologies: [Android]
-categories:   ["User Interface"]
+categories:   [User Interface]
 languages:    [Java]
 solutions:    [Mobile]
 github:       android/user-interface