diff --git a/include/GL/glfw3.h b/include/GL/glfw3.h
index 89dfc26c..e49654d1 100644
--- a/include/GL/glfw3.h
+++ b/include/GL/glfw3.h
@@ -65,7 +65,6 @@ extern "C" {
  #else
   #define APIENTRY
  #endif
- #define GLFW_APIENTRY_DEFINED
 #endif /* APIENTRY */
 
 
@@ -605,11 +604,6 @@ GLFWAPI void glfwDisable(GLFWwindow window, int token);
 
 /* ------------------- BEGIN SYSTEM/COMPILER SPECIFIC -------------------- */
 
-#ifdef GLFW_APIENTRY_DEFINED
- #undef APIENTRY
- #undef GLFW_APIENTRY_DEFINED
-#endif
-
 #ifdef GLFW_WINGDIAPI_DEFINED
  #undef WINGDIAPI
  #undef GLFW_WINGDIAPI_DEFINED