diff --git a/results-processor/artifact_test_github.zip b/results-processor/artifact_test_github.zip
new file mode 100644
index 0000000000..cd710023fd
Binary files /dev/null and b/results-processor/artifact_test_github.zip differ
diff --git a/results-processor/artifact_test_numberless.zip b/results-processor/artifact_test_numberless.zip
new file mode 100644
index 0000000000..bd21d85f10
Binary files /dev/null and b/results-processor/artifact_test_numberless.zip differ
diff --git a/results-processor/processor.py b/results-processor/processor.py
index 31417769e5..f449432b57 100644
--- a/results-processor/processor.py
+++ b/results-processor/processor.py
@@ -2,9 +2,10 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+import fnmatch
 import logging
 import os
-import re
+import posixpath
 import shutil
 import sys
 import tempfile
@@ -187,13 +188,14 @@ def _download_archive(self, archive_url):
             return
         with zipfile.ZipFile(artifact, mode='r') as z:
             for f in z.infolist():
-                # ZipInfo.is_dir isn't available in Python 3.5.
-                if f.filename.endswith('/'):
+                if f.is_dir():
                     continue
-                path = z.extract(f, path=self._temp_dir)
-                if re.match(r'^.*/wpt_report.*\.json$', f.filename):
+                basename = posixpath.basename(f.filename)
+                if fnmatch.fnmatchcase(basename, 'wpt_report*.json'):
+                    path = z.extract(f, path=self._temp_dir)
                     self.results.append(path)
-                if re.match(r'^.*/wpt_screenshot.*\.txt$', f.filename):
+                elif fnmatch.fnmatchcase(basename, 'wpt_screenshot*.txt'):
+                    path = z.extract(f, path=self._temp_dir)
                     self.screenshots.append(path)
 
     def download(self, results, screenshots, archives):
diff --git a/results-processor/processor_test.py b/results-processor/processor_test.py
index 8a4c9e1bbc..42e0a24f53 100644
--- a/results-processor/processor_test.py
+++ b/results-processor/processor_test.py
@@ -85,6 +85,36 @@ def test_download_azure_errors(self):
             p.download([], [], ['https://wpt.fyi/artifact.zip'])
             self.assertEqual(len(p.results), 0)
 
+    def test_download_github(self):
+        with Processor() as p:
+            p._download_gcs = self.fake_download(None, None)
+            p._download_http = self.fake_download(
+                'https://wpt.fyi/artifact.zip',
+                'artifact_test_github.zip')
+
+            p.download([], [], ['https://wpt.fyi/artifact.zip'])
+            self.assertEqual(len(p.results), 1)
+            self.assertTrue(p.results[0].endswith(
+                '/wpt_report_2.json'))
+            self.assertEqual(len(p.screenshots), 1)
+            self.assertTrue(p.screenshots[0].endswith(
+                '/wpt_screenshot_2.txt'))
+
+    def test_download_numberless(self):
+        with Processor() as p:
+            p._download_gcs = self.fake_download(None, None)
+            p._download_http = self.fake_download(
+                'https://wpt.fyi/artifact.zip',
+                'artifact_test_numberless.zip')
+
+            p.download([], [], ['https://wpt.fyi/artifact.zip'])
+            self.assertEqual(len(p.results), 1)
+            self.assertTrue(p.results[0].endswith(
+                '/wpt_report.json'))
+            self.assertEqual(len(p.screenshots), 1)
+            self.assertTrue(p.screenshots[0].endswith(
+                '/wpt_screenshot.txt'))
+
 
 class MockProcessorTest(unittest.TestCase):
     @patch('processor.Processor')