diff --git a/spcd/bootstrap.sh b/spcd/bootstrap.sh
index fef9e79..2aaf7b2 100644
--- a/spcd/bootstrap.sh
+++ b/spcd/bootstrap.sh
@@ -72,7 +72,7 @@ _spcd_banner_add() {
         if [ -n "${SPCD_BANNER_MIDDLE}" ]; then
             _spcd_banner_split
         else
-            spcd_banner_open
+            _spcd_banner_open
         fi
         _spcd_banner_append \
             "${spcd_ba__filler}" "${spcd_ba__text}" "${spcd_ba__filler}"
@@ -110,7 +110,7 @@ ${SPCD_BANNER_MIDDLE}
 ${SPCD_BANNER_BOTTOM}"
 }
 
-spcd_banner_open() {
+_spcd_banner_open() {
     _spcd_banner_append \
         "${SPCD_BANNER_DOWN_AND_RIGHT}" \
         "${SPCD_BANNER_VERTICAL}" \