diff --git a/tests/driver_at/main.c b/tests/driver_at/main.c
index ff421d2d1e..026d966d1b 100644
--- a/tests/driver_at/main.c
+++ b/tests/driver_at/main.c
@@ -94,7 +94,7 @@ static int send_lines(int argc, char **argv)
     }
 
     ssize_t len;
-    if ((len = at_send_cmd_get_lines(&at_dev, argv[1], resp, sizeof(resp), 10 * US_PER_SEC)) < 0) {
+    if ((len = at_send_cmd_get_lines(&at_dev, argv[1], resp, sizeof(resp), true, 10 * US_PER_SEC)) < 0) {
         puts("Error");
         return 1;
     }