diff --git a/java_console/build.xml b/java_console/build.xml
index 31fdeed716..0fa8bd22f0 100644
--- a/java_console/build.xml
+++ b/java_console/build.xml
@@ -42,7 +42,12 @@
         </jar>
     </target>
 
-    <target name="compile">
+<!--    todo: there must be a way to invoke a task from configuration_definition build.xml? -->
+    <target name="antlr">
+        <java jar="../java_tools/configuration_definition/lib/antlr-4.5-complete.jar" args="-o ../java_tools/configuration_definition/src/com/rusefi/generated ../java_tools/configuration_definition/RusefiConfigGrammar.g4" fork="true" failonerror="true" />
+    </target>
+
+    <target name="compile" depends="antlr">
         <mkdir dir="build/classes"/>
         <javac debug="yes" destdir="build/classes"
                classpath="${lib_list}">
diff --git a/misc/jenkins/build_java_console.sh b/misc/jenkins/build_java_console.sh
index 08ebbc726f..f3364179f7 100644
--- a/misc/jenkins/build_java_console.sh
+++ b/misc/jenkins/build_java_console.sh
@@ -3,11 +3,6 @@
 echo "java version"
 java -version
 
-echo "Generating Java (Antlr)"
-cd java_tools/configuration_definition
-ant antlr
-cd ../..
-
 echo "Building java console"
 pwd
 cd java_console