diff --git a/libs/fbjni/cxx/fbjni/detail/Meta-inl.h b/libs/fbjni/cxx/fbjni/detail/Meta-inl.h
index f750ff4fd..2ebc88c67 100644
--- a/libs/fbjni/cxx/fbjni/detail/Meta-inl.h
+++ b/libs/fbjni/cxx/fbjni/detail/Meta-inl.h
@@ -49,6 +49,7 @@ struct ArgsArraySetter<idx, Arg, Args...> {
 template <int idx>
 struct ArgsArraySetter<idx> {
   static void set(alias_ref<JArrayClass<jobject>::javaobject> array) {
+    (void)array;
   }
 };
 
diff --git a/libs/fbjni/cxx/fbjni/detail/Registration-inl.h b/libs/fbjni/cxx/fbjni/detail/Registration-inl.h
index 76ed9215e..df1c83409 100644
--- a/libs/fbjni/cxx/fbjni/detail/Registration-inl.h
+++ b/libs/fbjni/cxx/fbjni/detail/Registration-inl.h
@@ -123,6 +123,7 @@ inline NativeMethodWrapper* exceptionWrapJNIMethod(R (*)(alias_ref<C>, Args... a
 
 template<typename M, M method, typename C, typename R, typename... Args>
 inline NativeMethodWrapper* exceptionWrapJNIMethod(R (C::*method0)(Args... args)) {
+  (void)method0;
   // This intentionally erases the real type; JNI will do it anyway
   return reinterpret_cast<NativeMethodWrapper*>(&(MethodWrapper<M, method, C, R, Args...>::call));
 }