diff --git a/modules/sipmsgops/sipmsgops.c b/modules/sipmsgops/sipmsgops.c
index 5ca1e2efb40..d5930fe6ac1 100644
--- a/modules/sipmsgops/sipmsgops.c
+++ b/modules/sipmsgops/sipmsgops.c
@@ -1410,8 +1410,8 @@ static char _is_username_char[128] = {
 	0 /* 37 % */,
 	1 /* 38 & */,
 	1 /* 39 ' */,
-	0 /* 40 ( */,
-	0 /* 41 ) */,
+	1 /* 40 ( */,
+	1 /* 41 ) */,
 	1 /* 42 * */,
 	1 /* 43 + */,
 	1 /* 44 , */,