diff --git a/build.third_step0-jdk11.gradle b/build.third_step0-jdk11.gradle
index a83cfd50a..69a8678b1 100644
--- a/build.third_step0-jdk11.gradle
+++ b/build.third_step0-jdk11.gradle
@@ -20,6 +20,7 @@ version='10.0'
 jar{
 	baseName="fine-third"
 	zip64 true
+	from {classesDir}
 }
 
 repositories {