diff --git a/tutorials/kotlin/MapWithMarker/app/build.gradle.kts b/tutorials/kotlin/MapWithMarker/app/build.gradle.kts
index 9e884e8f..5cb14168 100644
--- a/tutorials/kotlin/MapWithMarker/app/build.gradle.kts
+++ b/tutorials/kotlin/MapWithMarker/app/build.gradle.kts
@@ -64,5 +64,6 @@ dependencies {
 }
 
 secrets {
+    propertiesFileName = "secrets.properties"
     defaultPropertiesFileName = "local.defaults.properties"
 }
\ No newline at end of file
diff --git a/tutorials/kotlin/Polygons/app/build.gradle.kts b/tutorials/kotlin/Polygons/app/build.gradle.kts
index 073f0155..2e55af33 100644
--- a/tutorials/kotlin/Polygons/app/build.gradle.kts
+++ b/tutorials/kotlin/Polygons/app/build.gradle.kts
@@ -64,5 +64,6 @@ dependencies {
 }
 
 secrets {
+    propertiesFileName = "secrets.properties"
     defaultPropertiesFileName = "local.defaults.properties"
 }