diff --git a/app/src/main/cpp/BrowserWorld.cpp b/app/src/main/cpp/BrowserWorld.cpp
index 41e9d5598..9a17a72f6 100644
--- a/app/src/main/cpp/BrowserWorld.cpp
+++ b/app/src/main/cpp/BrowserWorld.cpp
@@ -1312,7 +1312,7 @@ JNI_METHOD(void, runCallbackNative)
 }
 
 JNI_METHOD(void, setIsServo)
-(JNIEnv* aEnv, jboolean aIsServo) {
+(JNIEnv* aEnv, jobject, jboolean aIsServo) {
   crow::BrowserWorld::Instance().SetIsServo(aIsServo);
 }