diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index fb0a0d3c42..3864639d20 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -217,7 +217,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include <regex.h>
 #include <inttypes.h>
 
-#define REF_DEBUG 1
 #include "asterisk/network.h"
 #include "asterisk/paths.h"	/* need ast_config_AST_SYSTEM_NAME */
 /*