diff --git a/ansible/tasks/playbook_scapy-sniffer_GPS.yml b/ansible/tasks/playbook_scapy-sniffer_GPS.yml
index 275d07e96d082122d4d094d0bb8a6c460618fa3f..970435bbd88e10989debe1110d174eac16eebef4 100644
--- a/ansible/tasks/playbook_scapy-sniffer_GPS.yml
+++ b/ansible/tasks/playbook_scapy-sniffer_GPS.yml
@@ -62,7 +62,7 @@
 
     - name: Double-check input variables
       assert:
-        that: "{{ _interfaces|length }} == _channels"
+        that: "{{ _interfaces|length }} == {{ _channels|length }}"
       delegate_to: 127.0.0.1
       run_once: True
 
diff --git a/config/broadcast.yml b/config/broadcast.yml
index 6c02f35dcae5e041c77063e9b6475404564807de..66cba350d8914cb02b6c327904ce65061acc5833 100644
--- a/config/broadcast.yml
+++ b/config/broadcast.yml
@@ -6,4 +6,4 @@
 
   tasks:
     - name: say things to tty1
-      ansible.builtin.shell: echo {{ inventory_hostname }} {{ group_names[1] }} \n| sudo tee /dev/tty1 || /bin/true
+      ansible.builtin.shell: echo {{ inventory_hostname }} {{ group_names[1] }} | sudo tee /dev/tty1 && /bin/true