diff --git a/spcd/bootstrap.sh b/spcd/bootstrap.sh
index d6453a1..a3b484a 100644
--- a/spcd/bootstrap.sh
+++ b/spcd/bootstrap.sh
@@ -921,6 +921,7 @@ spcd_txt_locale() {
     "show")
         local regex
         for name in "${@}"; do
+            unset regex
             case "${name}" in
             # LC_CTYPE
             "LC_NUMERIC") regex="^\(decimal\|thousands\|grouping\)" ;;