1 files changed, 2 insertions, 1 deletions
diff --git a/main.c b/main.c
index 1ed13cb..b71a824 100644
--- a/main.c
+++ b/main.c
@@ -598,7 +598,8 @@ main(int argc, char *argv[]) {
 			}
 		}
 		else if(!strncmp(argv[i], "-u", 3)){
-			dzen.tsupdate = True;
+			if(dzen.slave_win.max_lines)
+				dzen.tsupdate = True;
 		}
 		else if(!strncmp(argv[i], "-p", 3)) {
 			dzen.ispersistent = True;