diff --git a/include/gnss_utils/navigation.h b/include/gnss_utils/navigation.h
index beb7299492dbcb554889626783c01fd3b7292c61..2fc13a71c0eb45a88b4570c4be33db1074b12c7b 100644
--- a/include/gnss_utils/navigation.h
+++ b/include/gnss_utils/navigation.h
@@ -1,5 +1,5 @@
-#ifndef NAVIGATION_H
-#define NAVIGATION_H
+#ifndef INCLUDE_GNSS_UTILS_NAVIGATION_H_
+#define INCLUDE_GNSS_UTILS_NAVIGATION_H_
 
 #include <vector>
 #include <iostream>
@@ -362,4 +362,4 @@ inline void Navigation::freeNavArrays(nav_t& nav)
 }
 
 }  // namespace GnssUtils
-#endif
+#endif  // INCLUDE_GNSS_UTILS_NAVIGATION_H_