fix a regression in the previous commit for tab complete

Reported by Santtu Lakkala <inz@inz.fi>, thanks!

1 files changed, 1 insertions, 1 deletions

diff --git a/dmenu.c b/dmenu.c
index 6b285df..818313a 100644
--- a/dmenu.c
+++ b/dmenu.c
@@ -519,7 +519,7 @@ insert:
 			return;
 		cursor = strnlen(sel->text, sizeof text - 1);
 		memcpy(text, sel->text, cursor);
-		text[sizeof text - 1] = '\0';
+		text[cursor] = '\0';
 		match();
 		break;
 	}