diff --git a/tests/fixtures/layout-success-pattern.yaml b/tests/fixtures/layout-success-pattern.yaml
new file mode 100644
index 0000000..cea15f1
--- /dev/null
+++ b/tests/fixtures/layout-success-pattern.yaml
@@ -0,0 +1,21 @@
+pipelines:
+  - name: check
+    manager: IndependentPipelineManager
+    trigger:
+      gerrit:
+        - event: patchset-created
+    success:
+      smtp:
+        to: me@example.org
+
+jobs:
+  - name: docs-draft-test
+    success-pattern: http://docs-draft.example.org/{build.parameters[LOG_PATH]}/publish-docs/
+  - name: docs-draft-test2
+    success-pattern: http://docs-draft.example.org/{NOPE}/{build.parameters[BAD]}/publish-docs/
+
+projects:
+  - name: org/docs
+    check:
+      - docs-draft-test:
+        - docs-draft-test2
diff --git a/tests/test_scheduler.py b/tests/test_scheduler.py
index fe7c7cc..8ac5368 100755
--- a/tests/test_scheduler.py
+++ b/tests/test_scheduler.py
@@ -4392,3 +4392,38 @@
         self.assertIn('Build failed.', K.messages[0])
         # No more messages reported via smtp
         self.assertEqual(3, len(self.smtp_messages))
+
+    def test_success_pattern(self):
+        "Ensure bad build params are ignored"
+
+        # Use SMTP reporter to grab the result message easier
+        self.init_repo("org/docs")
+        self.config.set('zuul', 'layout_config',
+                        'tests/fixtures/layout-success-pattern.yaml')
+        self.sched.reconfigure(self.config)
+        self.worker.hold_jobs_in_build = True
+        self.registerJobs()
+
+        A = self.fake_gerrit.addFakeChange('org/docs', 'master', 'A')
+        self.fake_gerrit.addEvent(A.getPatchsetCreatedEvent(1))
+        self.waitUntilSettled()
+
+        # Grab build id
+        self.assertEqual(len(self.builds), 1)
+        uuid = self.builds[0].unique[:7]
+
+        self.worker.hold_jobs_in_build = False
+        self.worker.release()
+        self.waitUntilSettled()
+
+        self.assertEqual(len(self.smtp_messages), 1)
+        body = self.smtp_messages[0]['body'].splitlines()
+        self.assertEqual('Build succeeded.', body[0])
+
+        self.assertIn(
+            '- docs-draft-test http://docs-draft.example.org/1/1/1/check/'
+            'docs-draft-test/%s/publish-docs/' % uuid,
+            body[2])
+        self.assertIn(
+            '- docs-draft-test2 https://server/job/docs-draft-test2/1/',
+            body[3])