diff --git a/src/sbbs3/asc2ans.c b/src/sbbs3/asc2ans.c
index 6eda41db08634aca2c1c6196865b67a35c874c8e..cb2ff4a9800a92f3bb413ba34fdb6073ec2c0fa8 100644
--- a/src/sbbs3/asc2ans.c
+++ b/src/sbbs3/asc2ans.c
@@ -24,7 +24,7 @@
 #include <string.h>		/* strcmp */
 
 #ifdef _WIN32
-	#include <Windows.h>	/* SetConsoleMode */
+	#include <windows.h>	/* SetConsoleMode */
 	#ifndef ENABLE_VIRTUAL_TERMINAL_PROCESSING
 	#define ENABLE_VIRTUAL_TERMINAL_PROCESSING 0x0004
 	#endif