diff --git a/test/lisp/net/nsm-tests.el b/test/lisp/net/nsm-tests.el
index bf6ac04b527..f3544370389 100644
--- a/test/lisp/net/nsm-tests.el
+++ b/test/lisp/net/nsm-tests.el
@@ -42,11 +42,11 @@
     (should-error (nsm-network-same-subnet local-ip wrong-length-mask remote-ip-yes))
     (should (eq nil (nsm-network-same-subnet local-ip wrong-mask remote-ip-yes)))
     (should (eq t (nsm-should-check "google.com")))
-    (should (eq t (nsm-should-check "127.1")))
+    (should (eq t (nsm-should-check "127.0.0.1")))
     (should (eq t (nsm-should-check "localhost")))
     (let ((nsm-trust-local-network t))
       (should (eq t (nsm-should-check "google.com")))
-      (should (eq nil (nsm-should-check "127.1")))
+      (should (eq nil (nsm-should-check "127.0.0.1")))
       (should (eq nil (nsm-should-check "localhost"))))))
 
 ;; FIXME This will never return true, since