diff --git a/code/jpeg-6b/jmorecfg.h b/code/jpeg-6b/jmorecfg.h
index ec679eb0..d677127d 100644
--- a/code/jpeg-6b/jmorecfg.h
+++ b/code/jpeg-6b/jmorecfg.h
@@ -159,7 +159,7 @@ typedef short INT16;
 
 /* MinGW basetsd.h defines INT32 - don't redefine it */
 #ifndef __WIN64
-#if !(defined __MINGW32__ && defined _BASETSD_H)
+#if !(defined __MINGW32__ && (defined _BASETSD_H || defined _BASETSD_H_))
 typedef long INT32;
 #endif
 #endif