diff --git a/opt/system-image b/opt/system-image
index 266c3c5..32330fb 100644
--- a/opt/system-image
+++ b/opt/system-image
@@ -19,7 +19,8 @@ function echo_tty {
 function yesno {
   unset DISCARD_ME
   while [ -z "$DISCARD_ME" ]; do
-    read -p "[y/n] " -n1 DISCARD_ME < $TTY_OR_CONSOLE > $TTY_OR_CONSOLE
+    echo_tty -n "[y/n] "
+    read -n1 DISCARD_ME < $TTY_OR_CONSOLE > $TTY_OR_CONSOLE
     case "$DISCARD_ME" in
       y)
         # add a line break