diff --git a/script/gitmainbranch b/script/gitmainbranch
index f17a5b1..9c62dce 100755
--- a/script/gitmainbranch
+++ b/script/gitmainbranch
@@ -5,11 +5,15 @@
 set -e
 
 if git branch -l | grep -q "main"; then
+  >&2 echo "mainbranch: selected branch main"
+  sleep 0.5
   echo "main"
   exit 0
 fi
 
 if git branch -l | grep -q "master"; then
+  >&2 echo "mainbranch: selected branch master"
+  sleep 0.5
   echo "master"
   exit 0
 fi