diff --git a/src/MameNameMap.cpp b/src/MameNameMap.cpp
index b1bb0fcf9..c09c5fd9d 100644
--- a/src/MameNameMap.cpp
+++ b/src/MameNameMap.cpp
@@ -1,4 +1,4 @@
-#include <map>
+#define NULL 0
 
 const char* mameNameToRealName[] = {
 	"005", "005",