diff --git a/usr.sbin/sendmail/src/util.c b/usr.sbin/sendmail/src/util.c
index b492a2e5bf82..7abc67176cb4 100644
--- a/usr.sbin/sendmail/src/util.c
+++ b/usr.sbin/sendmail/src/util.c
@@ -1884,7 +1884,7 @@ get_column(line, col, delim, buf, buflen)
 	char *p;
 	char *begin, *end;
 	int i;
-	char delimbuf[3];
+	char delimbuf[4];
 	
 	if (delim == '\0')
 		strcpy(delimbuf, "\n\t ");