diff --git a/src/ArduinoJson/Polyfills/attributes.hpp b/src/ArduinoJson/Polyfills/attributes.hpp
index 2eaaa57c..268026f2 100644
--- a/src/ArduinoJson/Polyfills/attributes.hpp
+++ b/src/ArduinoJson/Polyfills/attributes.hpp
@@ -7,7 +7,6 @@
 #ifdef _MSC_VER  // Visual Studio
 
 #  define FORCE_INLINE  // __forceinline causes C4714 when returning std::string
-#  define NO_INLINE __declspec(noinline)
 
 #  ifndef ARDUINOJSON_DEPRECATED
 #    define ARDUINOJSON_DEPRECATED(msg) __declspec(deprecated(msg))
@@ -16,7 +15,6 @@
 #elif defined(__GNUC__)  // GCC or Clang
 
 #  define FORCE_INLINE __attribute__((always_inline))
-#  define NO_INLINE __attribute__((noinline))
 
 #  ifndef ARDUINOJSON_DEPRECATED
 #    if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)
@@ -29,7 +27,6 @@
 #else  // Other compilers
 
 #  define FORCE_INLINE
-#  define NO_INLINE
 
 #  ifndef ARDUINOJSON_DEPRECATED
 #    define ARDUINOJSON_DEPRECATED(msg)