diff --git a/include/numeric.h b/include/numeric.h
index 8f91c55..3ee3871 100644
--- a/include/numeric.h
+++ b/include/numeric.h
@@ -377,6 +377,8 @@ extern const char *form_str(int);
 
 #define ERR_NOCOMMONCHAN	737
 
+#define ERR_MLOCKRESTRICTED	735
+
 #define RPL_RSACHALLENGE2       740
 #define RPL_ENDOFRSACHALLENGE2  741
 
diff --git a/src/messages.tab b/src/messages.tab
index 7fe4fb4..d652836 100644
--- a/src/messages.tab
+++ b/src/messages.tab
@@ -756,7 +756,7 @@ static  const char *  replies[] = {
 /* 732 RPL_MONLIST */		":%s 732 %s :%s",
 /* 733 RPL_ENDOFMONLIST */	":%s 733 %s :End of MONITOR list",
 /* 734 ERR_MONLISTFULL */	":%s 734 %s %d %s :Monitor list is full",
-/* 735 */	NULL,
+/* 735 ERR_MLOCKRESTRICTED */	"%s %c :This mode cannot be set because it is restricted to Services only.",
 /* 736 */	NULL,
 /* 737 ERR_NOCOMMONCHAN*/	"%s :is in +G mode (server-side ignore) and you do not share a common channel with them.",
 /* 738 */	NULL,