diff --git a/config/functions b/config/functions
index 708aa9593f..a070bd77d9 100644
--- a/config/functions
+++ b/config/functions
@@ -218,7 +218,7 @@ check_toolchain_config() {
     toolchain="CMAKE"
   fi
   for var in "${!PKG_@}"; do
-    if [[ "${var}" =~ INSTALL_OPTS_ || "${var}" =~ _MAKE_OPTS ]]; then
+    if [[ "${var}" =~ INSTALL_OPTS_ || "${var}" =~ _MAKE_OPTS || "${var}" =~ _TAR_COPY_OPTS ]]; then
       continue
     fi
     if [[ "${var}" =~ _OPTS_${target}$ \