diff --git a/support/testing/tests/package/test_fping.py b/support/testing/tests/package/test_fping.py
index 507c4ce73b..e8aba653f1 100644
--- a/support/testing/tests/package/test_fping.py
+++ b/support/testing/tests/package/test_fping.py
@@ -41,5 +41,4 @@ class TestFping(infra.basetest.BRTest):
         self.assertRunOk("ip route add to prohibit 192.168.12.0/24")
 
         # We expect fping to fail when pinging the prohibited network.
-        _, ret = self.emulator.run("fping 192.168.12.34")
-        self.assertNotEqual(ret, 0)
+        self.assertRunNotOk("fping 192.168.12.34")