diff --git a/extensions/gdx-box2d/gdx-box2d-build/build.gradle b/extensions/gdx-box2d/gdx-box2d-build/build.gradle
index 3883c19e..2639f1af 100644
--- a/extensions/gdx-box2d/gdx-box2d-build/build.gradle
+++ b/extensions/gdx-box2d/gdx-box2d-build/build.gradle
@@ -5,6 +5,7 @@ project.ext.mainClassName = "com.github.xpenatan.gdx.html5.box2d.Main"
 dependencies {
     implementation "com.github.xpenatan.jParser:jParser-core:$project.jParserVersion"
     implementation "com.github.xpenatan.jParser:jParser-teavm:$project.jParserVersion"
+    implementation "com.github.xpenatan.jParser:jParser-idl:$project.jParserVersion"
 }
 
 tasks.register('generateNativeProject', JavaExec) {
diff --git a/extensions/gdx-bullet/gdx-bullet-build/build.gradle b/extensions/gdx-bullet/gdx-bullet-build/build.gradle
index 7c73eb13..9b1f2eca 100644
--- a/extensions/gdx-bullet/gdx-bullet-build/build.gradle
+++ b/extensions/gdx-bullet/gdx-bullet-build/build.gradle
@@ -7,6 +7,7 @@ dependencies {
     implementation "com.github.xpenatan.jParser:jParser-core:$project.jParserVersion"
     implementation "com.github.xpenatan.jParser:jParser-teavm:$project.jParserVersion"
     implementation "com.github.xpenatan.jParser:jParser-cpp:$project.jParserVersion"
+    implementation "com.github.xpenatan.jParser:jParser-idl:$project.jParserVersion"
 }
 
 tasks.register('generateNativeProject', JavaExec) {