diff --git a/NativeWinApi.h b/NativeWinApi.h
index 63fced1..582306b 100644
--- a/NativeWinApi.h
+++ b/NativeWinApi.h
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <windows.h>
+#include <string>
 
 #define STATUS_INFO_LENGTH_MISMATCH ((NTSTATUS)0xC0000004L)
 #define STATUS_SUCCESS   ((NTSTATUS)0x00000000L)
