diff --git a/ros2rag.example/build.gradle b/ros2rag.example/build.gradle
index ddfeaf8dcdd434f23161c1f04a8865b93f394697..56316f022083a50897c58e740074bc7528c25403 100644
--- a/ros2rag.example/build.gradle
+++ b/ros2rag.example/build.gradle
@@ -110,7 +110,7 @@ task relastToJastAdd(type: JavaExec) {
     args(["../libs/relast.jar",
             "--grammarName=./src/gen/jastadd/model",
             "--useJastAddNames",
-            "--listClass=ArrayList",
+            "--listClass=java.util.ArrayList",
             "--jastAddList=JastAddList",
             "--resolverHelper",
             "--file"]