diff --git a/ivtest/regress-vlg.list b/ivtest/regress-vlg.list
index 862fcbc63..858dc4bc9 100644
--- a/ivtest/regress-vlg.list
+++ b/ivtest/regress-vlg.list
@@ -325,7 +325,7 @@ br_gh283a		normal			ivltests
 br_gh283b		normal			ivltests
 br_gh283c		normal			ivltests
 br_gh309		normal			ivltests
-br_gh315		normal,-gspecify	ivltests
+br_gh315		normal,-g2005-sv,-gspecify	ivltests
 br_gh316a		normal,-gspecify	ivltests
 br_gh316b		normal,-gspecify	ivltests
 br_gh316c		normal,-gspecify	ivltests
diff --git a/parse.y b/parse.y
index 8c548476c..5c98f4fb1 100644
--- a/parse.y
+++ b/parse.y
@@ -5728,7 +5728,8 @@ port_name
 	$$ = tmp;
       }
   | attribute_list_opt '.' IDENTIFIER
-      { named_pexpr_t*tmp = new named_pexpr_t;
+      { pform_requires_sv(@3, "Implicit named port connections");
+	named_pexpr_t*tmp = new named_pexpr_t;
 	tmp->name = lex_strings.make($3);
 	tmp->parm = new PEIdent(lex_strings.make($3), true);
 	FILE_NAME(tmp->parm, @3);