diff --git a/build.gradle b/build.gradle
index ebe9291e23..618ef4b5a5 100644
--- a/build.gradle
+++ b/build.gradle
@@ -83,7 +83,7 @@ spotless {
     java {
         target fileTree('.') {
             include '**/*.java'
-            exclude '**/build/**', '**/build-*/**'
+            exclude '**/build/**', '**/build-*/**', '**/gen/**'
         }
         importOrder()
 //        licenseHeader("/*\n" +