diff --git a/cocci/dns_name_copynf.spatch b/cocci/dns_name_copynf.spatch
new file mode 100644
index 0000000000..7853b679e0
--- /dev/null
+++ b/cocci/dns_name_copynf.spatch
@@ -0,0 +1,6 @@
+@@
+expression E1, E2;
+@@
+
+- RUNTIME_CHECK(dns_name_copy(E1, E2, NULL) == ISC_R_SUCCESS);
++ dns_name_copynf(E1, E2);