diff -ur a/visual_regexp.tcl b/visual_regexp.tcl
--- a/visual_regexp.tcl	2013-11-11 12:11:34.256631106 +0100
+++ b/visual_regexp.tcl	2013-11-11 11:50:46.614881803 +0100
@@ -1437,7 +1439,7 @@
 		set output [text	$f.output \
 			-wrap						char \
 			-undo						1 \
-			-background				white 
+			-background				white \
 			-font						$::font_regexp \
 			-selectbackground		lightblue \
 			-selectborderwidth	0 \