diff --git a/bin/prezbuilder b/bin/prezbuilder
index 9504e2ab6cd56729a43314d78b3924ba85b1b7b8..cc533986b384ab5ec6ede29a475c8d85eea778d6 100755
--- a/bin/prezbuilder
+++ b/bin/prezbuilder
@@ -13,7 +13,7 @@ checkdir() {
   fi
   local DIR=`readlink -f $1`
   if [[ ! -d "$DIR" ]]; then
-    echo "$1 is not an existing directory" >&2
+    echo "$DIR does not exist or is not a directory" >&2
     usage
   fi
   echo "$DIR"