diff --git a/h-m-m b/h-m-m
index 0ee00c6..0a2c426 100755
--- a/h-m-m
+++ b/h-m-m
@@ -3374,6 +3374,12 @@ function display(&$mm, $force_center = false)
 		else
 			$line = $blank;
 
+
+		// ensuring that the line is long enough even if the map line is
+		// shorter than the terminal width
+		if (mb_strlen($line) < $mm['terminal_width'])
+			$line .= str_repeat(' ', $mm['terminal_width'] - mb_strlen($line));
+
 		// this one really depends on (x,y), but after this, the
 		// coordinates are not reliable anymore because of the
 		// added escape codes.