diff --git a/common/common-functions b/common/common-functions
index e9e9217..c26c5b8 100644
--- a/common/common-functions
+++ b/common/common-functions
@@ -695,7 +695,7 @@ extract_commands() {         #
                  --stringparam timezone $TIMEZONE \
                  --stringparam page $PAGE \
                  --stringparam lang $LANG \
-                 --stringparam keymap $KEYMAP \
+                 --stringparam keymap ${KEYMAP:-"none"} \
                  -o ./${PROGNAME}-commands/ $XSL $BOOK/$ARCH-index.xml >>$LOGDIR/$LOG 2>&1
       ;;
 
@@ -707,7 +707,7 @@ extract_commands() {         #
                  --stringparam timezone $TIMEZONE \
                  --stringparam page $PAGE \
                  --stringparam lang $LANG \
-                 --stringparam keymap $KEYMAP \
+                 --stringparam keymap ${KEYMAP:-"none"} \
                  -o ./${PROGNAME}-commands/ $XSL $BOOK/$ARCH-index.xml >>$LOGDIR/$LOG 2>&1
       ;;
     hlfs)
@@ -721,7 +721,7 @@ extract_commands() {         #
                  --stringparam page $PAGE \
                  --stringparam lang $LANG \
                  --stringparam lc_all $LC_ALL \
-                 --stringparam keymap $KEYMAP \
+                 --stringparam keymap ${KEYMAP:-"none"} \
                  --stringparam grsecurity_host $GRSECURITY_HOST \
                  -o ./${PROGNAME}-commands/ $XSL $BOOK/index.xml >>$LOGDIR/$LOG 2>&1
       ;;