diff --git a/configure b/configure
index 2b97f507..ed95c279 100755
--- a/configure
+++ b/configure
@@ -121,6 +121,7 @@ check_for() {
                     eval val="\${${var}}"
                     if [ -n "${val}" ]; then
                         printf "${val} (cached)\n"
+                        add_to_var_list "${var}"
                         return 0
                     fi
                 fi