diff --git a/GCryptCLI/include/Bases.h b/GCryptCLI/include/Bases.h
index a2678a6..22000c7 100644
--- a/GCryptCLI/include/Bases.h
+++ b/GCryptCLI/include/Bases.h
@@ -1,4 +1,6 @@
-#pragma once
+#ifndef GCRYPTCLI_BASES_H
+#define GCRYPTCLI_BASES_H
+
 #include <vector>
 #include <string>
 #include <map>
@@ -136,3 +138,6 @@ static const std::vector<std::string> BASE_UGH = {
   "Bah!",
   "Wha-?"
 };
+
+#endif
+
diff --git a/GCryptCLI/include/CommandlineInterface.h b/GCryptCLI/include/CommandlineInterface.h
index 54d0990..4a6d855 100644
--- a/GCryptCLI/include/CommandlineInterface.h
+++ b/GCryptCLI/include/CommandlineInterface.h
@@ -1,4 +1,6 @@
-#pragma once
+#ifndef GCRYPTCLI_CLIINTERFACE_H
+#define GCRYPTCLI_CLIINTERFACE_H
+
 #include <Hazelnupp/CmdArgsInterface.h>
 
 class CommandlineInterface
@@ -19,3 +21,5 @@ private:
   static Hazelnp::CmdArgsInterface nupp;
 };
 
+#endif
+