diff --git a/include/input/KeyCharacterMap.h b/include/input/KeyCharacterMap.h
index c67310e..9f1c0e2 100644
--- a/include/input/KeyCharacterMap.h
+++ b/include/input/KeyCharacterMap.h
@@ -227,7 +227,7 @@
         status_t parseMapKey();
         status_t parseKey();
         status_t parseKeyProperty();
-        status_t finishKey(Key* key);
+        status_t finishKey(Key& key);
         status_t parseModifier(const std::string& token, int32_t* outMetaState);
         status_t parseCharacterLiteral(char16_t* outCharacter);
     };