diff --git a/app/build.gradle b/app/build.gradle
index 367bd49..7783787 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -25,6 +25,9 @@
     dataBinding {
         enabled = true;
     }
+    sourceSets {
+        main.java.srcDirs += 'src/main/kotlin'
+    }
 }
 
 dependencies {