diff --git a/backend/include/drivearray.hpp b/backend/include/drivearray.hpp
index 674884c..5e57d62 100644
--- a/backend/include/drivearray.hpp
+++ b/backend/include/drivearray.hpp
@@ -1,5 +1,5 @@
-#ifndef BPT_DriveArray_HPP
-#define BPT_DriveArray_HPP
+#ifndef PROTECTOR_DRIVEARRAY_HPP
+#define PROTECTOR_DRIVEARRAY_HPP
 
 #include <algorithm>
 #include <cstring>
@@ -228,4 +228,4 @@ class DriveArray {
   }
 };
 
-#endif  // BPT_DriveArray_HPP
\ No newline at end of file
+#endif  // PROTECTOR_DRIVEARRAY_HPP
\ No newline at end of file
diff --git a/backend/include/key2index.hpp b/backend/include/key2index.hpp
index cd098bc..b284bf5 100644
--- a/backend/include/key2index.hpp
+++ b/backend/include/key2index.hpp
@@ -1,5 +1,5 @@
-#ifndef BPT_KEY2INDEX_HPP
-#define BPT_KEY2INDEX_HPP
+#ifndef PROTECTOR_KEY2INDEX_HPP
+#define PROTECTOR_KEY2INDEX_HPP
 #include <cassert>
 #include <functional>
 #include <string>
@@ -143,4 +143,4 @@ class String2Index {
     return std::move(ret);
   }
 };
-#endif  // BPT_KEY2INDEX_HPP
\ No newline at end of file
+#endif  // PROTECTOR_KEY2INDEX_HPP
\ No newline at end of file