diff --git a/salt/common/tools/sbin/so-status b/salt/common/tools/sbin/so-status
index fe353e126..52046d0cc 100755
--- a/salt/common/tools/sbin/so-status
+++ b/salt/common/tools/sbin/so-status
@@ -215,6 +215,7 @@ print_line() {
 }
 
 main() {
+    is_tty
     # if running from salt
     if [ "$CALLER" == 'salt-call' ] ||  [ "$CALLER" == 'salt-minion' ]; then
       printf "\n"