diff --git a/update_attempter_unittest.cc b/update_attempter_unittest.cc
index bdc0196..9684def 100644
--- a/update_attempter_unittest.cc
+++ b/update_attempter_unittest.cc
@@ -69,7 +69,7 @@
 #if USE_LIBCROS
 using org::chromium::LibCrosServiceInterfaceProxyMock;
 using org::chromium::UpdateEngineLibcrosProxyResolvedInterfaceProxyMock;
-#endif // USE_LIBCROS
+#endif  // USE_LIBCROS
 using std::string;
 using std::unique_ptr;
 using testing::_;