diff --git a/src/common/text.c b/src/common/text.c
index 44cdeff8..d8f61b8c 100644
--- a/src/common/text.c
+++ b/src/common/text.c
@@ -228,7 +228,7 @@ scrollback_save (session *sess, char *text)
 
 	stamp = time (0);
 	if (sizeof (stamp) == 4)	/* gcc will optimize one of these out */
-		buf = g_strdup_printf ("T %d", (int) stamp);
+		buf = g_strdup_printf ("T %d ", (int) stamp);
 	else
 		buf = g_strdup_printf ("T %" G_GINT64_FORMAT " ", (gint64)stamp);
 	write (sess->scrollfd, buf, strlen (buf));