diff --git a/tests/test_main.py b/tests/test_main.py
index 12a4c76..6362647 100644
--- a/tests/test_main.py
+++ b/tests/test_main.py
@@ -377,6 +377,52 @@ class MainTestCase(utils.TestCase):
             self.assertEquals(stats, json.loads(self.patched['wakatime.offlinequeue.Queue.push'].call_args[0][1]))
             self.patched['wakatime.offlinequeue.Queue.pop'].assert_not_called()
 
+    def test_hide_all_filenames_from_cli_arg(self):
+        response = Response()
+        response.status_code = 0
+        self.patched['wakatime.packages.requests.adapters.HTTPAdapter.send'].return_value = response
+
+        with utils.TemporaryDirectory() as tempdir:
+            entity = 'tests/samples/codefiles/twolinefile.txt'
+            shutil.copy(entity, os.path.join(tempdir, 'twolinefile.txt'))
+            entity = os.path.realpath(os.path.join(tempdir, 'twolinefile.txt'))
+            now = u(int(time.time()))
+            config = 'tests/samples/configs/good_config.cfg'
+            key = str(uuid.uuid4())
+
+            args = ['--file', entity, '--key', key, '--config', config, '--time', now, '--hidefilenames']
+
+            retval = execute(args)
+            self.assertEquals(retval, API_ERROR)
+            self.assertEquals(sys.stdout.getvalue(), '')
+            self.assertEquals(sys.stderr.getvalue(), '')
+
+            self.patched['wakatime.session_cache.SessionCache.get'].assert_called_once_with()
+            self.patched['wakatime.session_cache.SessionCache.delete'].assert_called_once_with()
+            self.patched['wakatime.session_cache.SessionCache.save'].assert_not_called()
+
+            heartbeat = {
+                'language': 'Text only',
+                'lines': 2,
+                'entity': 'HIDDEN.txt',
+                'project': os.path.basename(os.path.abspath('.')),
+                'time': float(now),
+                'type': 'file',
+            }
+            stats = {
+                u('cursorpos'): None,
+                u('dependencies'): [],
+                u('language'): u('Text only'),
+                u('lineno'): None,
+                u('lines'): 2,
+            }
+
+            self.patched['wakatime.offlinequeue.Queue.push'].assert_called_once_with(ANY, ANY, None)
+            for key, val in self.patched['wakatime.offlinequeue.Queue.push'].call_args[0][0].items():
+                self.assertEquals(heartbeat[key], val)
+            self.assertEquals(stats, json.loads(self.patched['wakatime.offlinequeue.Queue.push'].call_args[0][1]))
+            self.patched['wakatime.offlinequeue.Queue.pop'].assert_not_called()
+
     def test_hide_matching_filenames(self):
         response = Response()
         response.status_code = 0
diff --git a/wakatime/main.py b/wakatime/main.py
index 7ed1437..706e9e9 100644
--- a/wakatime/main.py
+++ b/wakatime/main.py
@@ -533,8 +533,8 @@ def format_file_path(filepath):
     try:
         filepath = os.path.realpath(os.path.abspath(filepath))
         filepath = re.sub(r'[/\\]', os.path.sep, filepath)
-    except:
-        pass  # pragma: nocover
+    except:  # pragma: nocover
+        pass
     return filepath