diff --git a/libavcodec/libpostproc/mangle.h b/libavcodec/libpostproc/mangle.h
index 5f5dc48499..f3894cc332 100644
--- a/libavcodec/libpostproc/mangle.h
+++ b/libavcodec/libpostproc/mangle.h
@@ -8,7 +8,7 @@
 #define __MANGLE_H
 
 /* Feel free to add more to the list, eg. a.out IMO */
-#if defined(__CYGWIN__) || defined(__OS2__) || \
+#if defined(__CYGWIN__) || defined(__MINGW32__) || defined(__OS2__) || \
    (defined(__OpenBSD__) && !defined(__ELF__))
 #define MANGLE(a) "_" #a
 #else