diff --git a/h-m-m b/h-m-m
index e826464..9c3a946 100755
--- a/h-m-m
+++ b/h-m-m
@@ -1148,8 +1148,7 @@ function magic_readline(&$mm, $title)
 			// ctrl+backspace
 			elseif ($in=="\010")
 			{
-				$from = mb_strrpos($title, ' ', min(1,$cursor-mb_strlen($title)-3));
-				if ($from === false) $from=1;
+				$from = max(0, mb_strrpos($title, ' ', max(0,min(1,$cursor-mb_strlen($title)-3))));
 				$title = mb_substr($title, 0, $from) . mb_substr($title,$cursor-1);
 				$cursor = $from+1;
 			}