diff --git a/mock_wifi_service.h b/mock_wifi_service.h
index a0d4ace..90bbd53 100644
--- a/mock_wifi_service.h
+++ b/mock_wifi_service.h
@@ -5,6 +5,9 @@
 #ifndef SHILL_MOCK_WIFI_SERVICE_
 #define SHILL_MOCK_WIFI_SERVICE_
 
+#include <string>
+#include <vector>
+
 #include <gmock/gmock.h>
 
 #include "shill/wifi_service.h"