diff --git a/vars/build.vars b/vars/build.vars
index 613d05c..f4af19d 100644
--- a/vars/build.vars
+++ b/vars/build.vars
@@ -188,7 +188,7 @@ HOST_TOOLS_PREFIX="${PREFIX}";
 : ${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:="--enable-shared"};
+: ${PKG_LIBZ_HOST_CONFIGURE_ARGS:="--enable-shared --prefix="};
 
 #
 # Build group host_deps