diff --git a/vars/build.vars b/vars/build.vars
index 8f636ba..de96ece 100644
--- a/vars/build.vars
+++ b/vars/build.vars
@@ -948,6 +948,7 @@ NATIVE_PACKAGES_INET_PREFIX="${PREFIX_NATIVE}";
 : ${PKG_THTTPD_BUILD_DIR:=thttpd-${PKG_THTTPD_VERSION}};
 : ${PKG_THTTPD_CONFIGURE_ARGS:="--disable-nls --host=${TARGET} --prefix= --target=${TARGET}"};
 : ${PKG_THTTPD_MAKE_INSTALL_VNAME:=prefix};
+: ${PKG_THTTPD_MAKEFLAGS_BUILD_EXTRA:=-j1};
 : ${PKG_WEECHAT_SHA256SUM:=3061e57460e0e3e4533551c45ced53b222fe0933848250d0fb7337d9aacfd853};
 : ${PKG_WEECHAT_VERSION:=1.6};
 : ${PKG_WEECHAT_URL:=https://weechat.org/files/src/weechat-${PKG_WEECHAT_VERSION}.tar.gz};