diff --git a/ports/zlib/build.sh b/ports/zlib/build.sh
new file mode 100755
index 00000000..61ceca33
--- /dev/null
+++ b/ports/zlib/build.sh
@@ -0,0 +1,9 @@
+#!/bin/bash ../install.sh
+
+NAME='zlib'
+VERSION='1.3.1'
+DOWNLOAD_URL="https://www.zlib.net/zlib-$VERSION.tar.gz#9a93b2b7dfdac77ceba5a558a580e74667dd6fede4585b91eefb60f03b72df23"
+
+configure() {
+	./configure --prefix=/usr --uname=banan_os
+}