diff --git a/codec/convert.c b/codec/convert.c
index 9493e8b6..ec1cb7c8 100644
--- a/codec/convert.c
+++ b/codec/convert.c
@@ -34,7 +34,6 @@
 #include <string.h>
 #ifdef WIN32
 #include "../libs/libtiff/tiffio.h"
-#include "../libs/libpng/png.h"
 #else
 #include <tiffio.h>
 #include <png.h>