diff --git a/Makefile.win b/Makefile.win
index 249970f4c2..5389d02bc6 100644
--- a/Makefile.win
+++ b/Makefile.win
@@ -15,7 +15,8 @@ HAVE_THREADS = 1
 HAVE_RGUI = 1
 HAVE_GLUI = 1
 HAVE_7ZIP = 1
-HAVE_PYTHON=0
+HAVE_ZLIB_DEFLATE = 1
+HAVE_PYTHON = 0
 DYNAMIC = 1
 
 HAVE_WINXINPUT = 1