diff --git a/vars/build.vars b/vars/build.vars
index 03c0873..3078622 100644
--- a/vars/build.vars
+++ b/vars/build.vars
@@ -200,12 +200,17 @@ HOST_TOOLS_PREFIX="${PREFIX}";
 HOST_TOOLS_DEPS_BUILD_TYPE="host";
 HOST_TOOLS_DEPS_CONFIGURE_ARGS="--disable-nls --prefix=${PREFIX}";
 HOST_TOOLS_DEPS_MAKEFLAGS_INSTALL_EXTRA="prefix=";
-HOST_TOOLS_DEPS_PACKAGES="file_host";
+HOST_TOOLS_DEPS_PACKAGES="file_host libz_host";
 HOST_TOOLS_DEPS_PARALLELISE=0;
 HOST_TOOLS_DEPS_PREFIX="${PREFIX}";
 : ${PKG_FILE_HOST_SHA256SUM:=8639dc4d1b21e232285cd483604afc4a6ee810710e00e579dbe9591681722b50};
 : ${PKG_FILE_HOST_VERSION:=5.32};
 : ${PKG_FILE_HOST_URL:=ftp://ftp.astron.com/pub/file/file-${PKG_FILE_HOST_VERSION}.tar.gz};
+: ${PKG_LIBZ_HOST_SHA256SUM:=abcc2831b7a0e891d0875fa852e9b9510b420d843d3d20aad010f65493fe4f7b};
+: ${PKG_LIBZ_HOST_VERSION:=1.2.8.2015.12.26};
+: ${PKG_LIBZ_HOST_URL:=https://sortix.org/libz/release/libz-${PKG_LIBZ_HOST_VERSION}.tar.gz};
+: ${PKG_LIBZ_HOST_CONFIGURE_ARGS:="--prefix= --enable-shared"};
+: ${PKG_LIBZ_HOST_MAKEFLAGS_INSTALL:="PREFIX= prefix="};
 
 #
 # Build target host_tools_rpm