diff -up a/dmenu.c b/dmenu.c
--- a/dmenu.c	Fri Aug 26 19:13:17 2011
+++ b/dmenu.c	Fri Aug 26 19:10:56 2011
@@ -353,6 +353,7 @@ keypress(XKeyEvent *ev) {
 	case XK_Tab:
 		if(!sel)
 			return;
+		strcat(sel->text, " ");
 		strncpy(text, sel->text, sizeof text);
 		cursor = strlen(text);
 		match(True);