diff --git a/vars/build.vars b/vars/build.vars
index 44e89c2..33ae8b2 100644
--- a/vars/build.vars
+++ b/vars/build.vars
@@ -52,6 +52,7 @@ HOST_TOOLS_RPM_BUILD_TYPE="host";
 HOST_TOOLS_RPM_CONFIGURE_ARGS="--disable-nls --prefix=${PREFIX}";
 HOST_TOOLS_RPM_MAKEFLAGS_INSTALL_EXTRA="prefix=";
 HOST_TOOLS_RPM_PACKAGES="libarchive_host libressl_host lmdb_host popt_host rpm_host";
+HOST_TOOLS_RPM_PARALLELISE=0;
 HOST_TOOLS_RPM_PREFIX="${PREFIX}";
 : ${PKG_LIBARCHIVE_HOST_SHA256SUM:=ed2dbd6954792b2c054ccf8ec4b330a54b85904a80cef477a1c74643ddafa0ce};
 : ${PKG_LIBARCHIVE_HOST_VERSION:=3.3.2};