diff --git a/generators/src/org/jetbrains/kotlin/generators/builtins/generateBuiltIns.kt b/generators/src/org/jetbrains/kotlin/generators/builtins/generateBuiltIns.kt
index b34f6c8ad41..6a3a8fa150e 100644
--- a/generators/src/org/jetbrains/kotlin/generators/builtins/generateBuiltIns.kt
+++ b/generators/src/org/jetbrains/kotlin/generators/builtins/generateBuiltIns.kt
@@ -43,7 +43,7 @@ abstract class BuiltInsSourceGenerator(val out: PrintWriter) {
     protected open val language: Language = Language.KOTLIN
 
     enum class Language {
-        KOTLIN
+        KOTLIN,
         JAVA
     }