diff --git a/auto/core/GL_REGAL_log b/auto/core/GL_REGAL_log
index 7f0ca4d..62b1295 100644
--- a/auto/core/GL_REGAL_log
+++ b/auto/core/GL_REGAL_log
@@ -10,3 +10,5 @@ GL_REGAL_log
 	GL_LOG_DEBUG_REGAL 0x931F
 	GL_LOG_STATUS_REGAL 0x9320
 	GL_LOG_HTTP_REGAL 0x9321
+	void glLogMessageCallbackREGAL (GLLOGPROCREGAL callback)
+	typedef void (APIENTRY *GLLOGPROCREGAL)(GLenum stream, GLsizei length, const GLchar *message, GLvoid *context)