diff --git a/hc/api/models.py b/hc/api/models.py
index 4929bb89..0c88ab00 100644
--- a/hc/api/models.py
+++ b/hc/api/models.py
@@ -227,7 +227,6 @@ class Check(models.Model):
         else:
             self.last_start = None
             self.last_ping = timezone.now()
-            self.last_ping_was_fail = action == "fail"
 
             new_status = "down" if action == "fail" else "up"
             if self.status != new_status:
diff --git a/hc/api/tests/test_ping.py b/hc/api/tests/test_ping.py
index b9747a27..c98501fe 100644
--- a/hc/api/tests/test_ping.py
+++ b/hc/api/tests/test_ping.py
@@ -128,22 +128,11 @@ class PingTestCase(TestCase):
         self.check.refresh_from_db()
         self.assertTrue(self.check.has_confirmation_link)
 
-    def test_ping_resets_fail_flag(self):
-        self.check.last_ping_was_fail = True
-        self.check.save()
-
-        r = self.client.get("/ping/%s/" % self.check.code)
-        self.assertEqual(r.status_code, 200)
-
-        self.check.refresh_from_db()
-        self.assertFalse(self.check.last_ping_was_fail)
-
     def test_fail_endpoint_works(self):
         r = self.client.get("/ping/%s/fail" % self.check.code)
         self.assertEqual(r.status_code, 200)
 
         self.check.refresh_from_db()
-        self.assertTrue(self.check.last_ping_was_fail)
         self.assertEqual(self.check.status, "down")
         self.assertEqual(self.check.alert_after, None)