diff --git a/include/nativehelper/toStringArray.h b/include/nativehelper/toStringArray.h
index f716ac1..02072b0 100644
--- a/include/nativehelper/toStringArray.h
+++ b/include/nativehelper/toStringArray.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef TO_STRING_ARRAY_H_included
-#define TO_STRING_ARRAY_H_included
+#ifndef LIBNATIVEHELPER_INCLUDE_NATIVEHELPER_TOSTRINGARRAY_H_
+#define LIBNATIVEHELPER_INCLUDE_NATIVEHELPER_TOSTRINGARRAY_H_
 
 #include "libnativehelper_api.h"
 
@@ -68,4 +68,4 @@
 
 #endif  // __cplusplus
 
-#endif  // TO_STRING_ARRAY_H_included
+#endif  // LIBNATIVEHELPER_INCLUDE_NATIVEHELPER_TOSTRINGARRAY_H_