diff --git a/include/ArduinoJson/Internals/JsonParser.hpp b/include/ArduinoJson/Internals/JsonParser.hpp
index 21403725..2fa98608 100644
--- a/include/ArduinoJson/Internals/JsonParser.hpp
+++ b/include/ArduinoJson/Internals/JsonParser.hpp
@@ -24,8 +24,6 @@ class JsonParser {
   JsonObject &parseObject();
 
  private:
-  bool isEnd() { return *_ptr == '\0'; }
-
   bool skip(char charToSkip);
   bool skip(const char *wordToSkip);
   void skipSpaces();