diff --git a/hostsidetests/securitybulletin/securityPatch/includes/common.h b/hostsidetests/securitybulletin/securityPatch/includes/common.h
index e5c0056..6800dc9 100644
--- a/hostsidetests/securitybulletin/securityPatch/includes/common.h
+++ b/hostsidetests/securitybulletin/securityPatch/includes/common.h
@@ -1,3 +1,22 @@
+/**
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef COMMON_H
+#define COMMON_H
+
 #include <time.h>
 #define MAX_TEST_DURATION 300
 
@@ -14,3 +33,5 @@
 int timer_active(time_t timer_started){
   return time(NULL) < (timer_started + MAX_TEST_DURATION);
 }
+
+#endif /* COMMON_H */