diff --git a/deps/zlib/zconf.h b/deps/zlib/zconf.h
index 494992aba..683cba88b 100644
--- a/deps/zlib/zconf.h
+++ b/deps/zlib/zconf.h
@@ -12,6 +12,7 @@
 
 #define NO_GZIP
 #define STDC
+#define NO_VIZ
 
 /* Jeez, don't complain about non-prototype
  * forms, we didn't write zlib */