diff --git a/advanced/end/app/src/main/java/com/example/android/codelabs/paging/api/GithubService.kt b/advanced/end/app/src/main/java/com/example/android/codelabs/paging/api/GithubService.kt
index 9bdd1edb..1a820453 100644
--- a/advanced/end/app/src/main/java/com/example/android/codelabs/paging/api/GithubService.kt
+++ b/advanced/end/app/src/main/java/com/example/android/codelabs/paging/api/GithubService.kt
@@ -24,7 +24,7 @@ import retrofit2.converter.gson.GsonConverterFactory
 import retrofit2.http.GET
 import retrofit2.http.Query
 
-const val IN_QUALIFIER = "in:name,description"
+const val IN_QUALIFIER = "+in:name,description"
 
 /**
  * Github API communication setup via Retrofit.
diff --git a/advanced/start/app/src/main/java/com/example/android/codelabs/paging/api/GithubService.kt b/advanced/start/app/src/main/java/com/example/android/codelabs/paging/api/GithubService.kt
index 9bdd1edb..1a820453 100644
--- a/advanced/start/app/src/main/java/com/example/android/codelabs/paging/api/GithubService.kt
+++ b/advanced/start/app/src/main/java/com/example/android/codelabs/paging/api/GithubService.kt
@@ -24,7 +24,7 @@ import retrofit2.converter.gson.GsonConverterFactory
 import retrofit2.http.GET
 import retrofit2.http.Query
 
-const val IN_QUALIFIER = "in:name,description"
+const val IN_QUALIFIER = "+in:name,description"
 
 /**
  * Github API communication setup via Retrofit.