diff --git a/Source/diablo.cpp b/Source/diablo.cpp
index 751af5c55..df35f810e 100644
--- a/Source/diablo.cpp
+++ b/Source/diablo.cpp
@@ -3,6 +3,11 @@
 #include "../DiabloUI/diabloui.h"
 #include <config.h>
 
+#ifdef _MSC_VER
+#define strcasecmp _stricmp
+#define strncasecmp _strnicmp
+#endif
+
 DEVILUTION_BEGIN_NAMESPACE
 
 HWND ghMainWnd;