diff --git a/jps/jps-common/src/org/jetbrains/kotlin/config/KotlinFacetSettings.kt b/jps/jps-common/src/org/jetbrains/kotlin/config/KotlinFacetSettings.kt
index 19f449cb599..fbda4ced164 100644
--- a/jps/jps-common/src/org/jetbrains/kotlin/config/KotlinFacetSettings.kt
+++ b/jps/jps-common/src/org/jetbrains/kotlin/config/KotlinFacetSettings.kt
@@ -50,6 +50,7 @@ sealed class TargetPlatformKind<out Version : TargetPlatformVersion>(
     }
 }
 
+// TODO: merge with LanguageFeature.State
 enum class CoroutineSupport(
         override val description: String,
         val compilerArgument: String