diff --git a/ansible/roles/osmocom-jenkins-slave/tasks/ttcn3-slave.yml b/ansible/roles/osmocom-jenkins-slave/tasks/ttcn3-slave.yml
index 67717fc5..bae3d77c 100644
--- a/ansible/roles/osmocom-jenkins-slave/tasks/ttcn3-slave.yml
+++ b/ansible/roles/osmocom-jenkins-slave/tasks/ttcn3-slave.yml
@@ -1,4 +1,11 @@
 ---
+- name: install programs used in jenkins.sh
+  apt:
+    name:
+      - netcat-openbsd
+    cache_valid_time: 3600
+    update_cache: yes
+    install_recommends: no
 
 - name: ensure jenkins folder exists
   become: yes