diff --git a/vars/build.vars b/vars/build.vars
index b04446a..7618e8e 100644
--- a/vars/build.vars
+++ b/vars/build.vars
@@ -308,7 +308,7 @@ NATIVE_RUNTIME_PREFIX="${PREFIX_NATIVE}";
 : ${PKG_NTCTTY_URLS_GIT:=ntctty=${DEFAULT_GITROOT_HEAD}/ntctty};
 : ${PKG_NTCTTY_CFLAGS_CONFIGURE_EXTRA:=-O0};
 : ${PKG_NTUX_URLS_GIT:=ntux=${DEFAULT_GITROOT}/ntux};
-: ${PKG_NTUX_CFLAGS_CONFIGURE_EXTRA:="-O0 -DNTUX_STANDALONE"};
+: ${PKG_NTUX_CFLAGS_CONFIGURE_EXTRA:=-O0};
 : ${PKG_PTYCON_URLS_GIT:=ptycon=${DEFAULT_GITROOT_HEAD}/ptycon};
 : ${PKG_PTYCON_CFLAGS_CONFIGURE_EXTRA:=-O0};
 : ${PKG_PTYCON_INSTALL_TARGET_EXTRA:="install-app install-lib"};
@@ -1323,6 +1323,7 @@ MINIPIX_PREFIX="${PREFIX}/minipix_dist";
 : ${PKG_NTCTTY_MINIPIX_ENV_VARS_EXTRA:="CFLAGS_PATH=-I${PREFIX_NATIVE}/include:LDFLAGS_PATH=-L${PREFIX_NATIVE}/lib"};
 : ${PKG_NTCTTY_MINIPIX_CONFIGURE_ARGS:="--prefix= --strict --host=${DEFAULT_TARGET}"};
 : ${PKG_NTUX_MINIPIX_INHERIT_FROM:=ntux};
+: ${PKG_NTUX_MINIPIX_CFLAGS_CONFIGURE:="${DEFAULT_CFLAGS_RUNTIME} --sysroot=${PREFIX_NATIVE} -O0 -DNTUX_STANDALONE"};
 : ${PKG_NTUX_MINIPIX_CONFIGURE_ARGS="--host=${DEFAULT_TARGET} --prefix= --target=${DEFAULT_TARGET}"};
 : ${PKG_NTUX_MINIPIX_LDFLAGS_BUILD:="--sysroot=${PREFIX_NATIVE}"};
 : ${PKG_NTUX_MINIPIX_LDFLAGS_CONFIGURE:="--sysroot=${PREFIX_NATIVE}"};