diff --git a/BAN/include/BAN/String.h b/BAN/include/BAN/String.h
index 7937240eb..2e9af01e6 100644
--- a/BAN/include/BAN/String.h
+++ b/BAN/include/BAN/String.h
@@ -1,4 +1,4 @@
-#pragma
+#pragma once
 
 #include <BAN/Errors.h>
 #include <BAN/Formatter.h>
diff --git a/BAN/include/BAN/Vector.h b/BAN/include/BAN/Vector.h
index 496bb9d3e..446ea7edc 100644
--- a/BAN/include/BAN/Vector.h
+++ b/BAN/include/BAN/Vector.h
@@ -1,4 +1,4 @@
-#pragma
+#pragma once
 
 #include <BAN/Errors.h>
 #include <BAN/Memory.h>