diff --git a/cpp/platform/jni/android/hyperlpr_native.cpp b/cpp/platform/jni/android/hyperlpr_native.cpp
index b80e7e3..0b01fb9 100644
--- a/cpp/platform/jni/android/hyperlpr_native.cpp
+++ b/cpp/platform/jni/android/hyperlpr_native.cpp
@@ -148,7 +148,7 @@ JNIEXPORT jobjectArray JNICALL HYPERLPR_API(core_HyperLPRCore_PlateRecognitionFr
         env->CallVoidMethod(jPlate, setConfidenceMethodId, plate.text_confidence);
         // set in plate code
         //        env->CallObjectMethod(jPlate, setCodeMethodId, stringTojstring(env, plate.code));
-        env->CallObjectMethod(jPlate, setCodeMethodId, env->NewStringUTF(plate.code));
+        env->CallVoidMethod(jPlate, setCodeMethodId, env->NewStringUTF(plate.code));
 
         env->SetObjectArrayElement(jPlateArray, i, jPlate);
         env->DeleteLocalRef(jPlate);