diff --git a/gentooup.sh b/gentooup.sh
index 2af6bc0..f24eeab 100755
--- a/gentooup.sh
+++ b/gentooup.sh
@@ -54,14 +54,16 @@ echo "emerge options: ${PORTAGE_OPTIONS[*]}"
 emerge $PORTAGE_ASK "${PORTAGE_UPGRADE_OPTIONS[@]}" "${PORTAGE_OPTIONS[@]}" world
 echo "emerge return value: $?"
 
-dispatch-conf
-echo "dispatch-conf return value: $?"
+if [[ -t 1 ]] ; then
+  dispatch-conf
+  echo "dispatch-conf return value: $?"
 
-emerge "${PORTAGE_UPGRADE_OPTIONS[@]}" "${PORTAGE_OPTIONS[@]}" world
-echo emerge return value: $?
+  emerge "${PORTAGE_UPGRADE_OPTIONS[@]}" "${PORTAGE_OPTIONS[@]}" world
+  echo emerge return value: $?
 
-dispatch-conf
-echo dispatch-conf return value: $?
+  dispatch-conf
+  echo dispatch-conf return value: $?
+fi
 
 SETS=("@preserved-rebuild")