diff --git a/lib/kotlin/build.gradle.kts b/lib/kotlin/build.gradle.kts
index 1f7711a..90b9e80 100644
--- a/lib/kotlin/build.gradle.kts
+++ b/lib/kotlin/build.gradle.kts
@@ -41,8 +41,10 @@
 }
 
 tasks {
-    ktfmt {
-        kotlinLangStyle()
+    if (JavaVersion.current().isJava11Compatible) {
+        ktfmt {
+            kotlinLangStyle()
+        }
     }
 
     test {