diff --git a/tst/runtests.sh b/tst/runtests.sh
index 3038821..76d5d05 100755
--- a/tst/runtests.sh
+++ b/tst/runtests.sh
@@ -30,10 +30,13 @@ diff tst/master tst/result
 error=$?
 if [ $error -eq 0 ]
 then
+    echo "No differences found between master and result images"
     exit 0
 elif [ $error -eq 1 ]
 then
+    echo "Differences found between master and result images"
     exit 1
 else
+    echo "Differences found between master and result images"
     exit 1
 fi