diff --git a/ansible/roles/dev_tools/tasks/main.yaml b/ansible/roles/dev_tools/tasks/main.yaml
index b2d6937f524..a3c0e53a21a 100644
--- a/ansible/roles/dev_tools/tasks/main.yaml
+++ b/ansible/roles/dev_tools/tasks/main.yaml
@@ -49,7 +49,7 @@
       - ros-{{ rosdistro }}-plotjuggler-ros
     state: latest
     update_cache: true
-  when: "'ros-' + rosdistro + '-' + plotjuggler-ros not in held_ros_packages.stdout"
+  when: "'ros-' + rosdistro + '-plotjuggler-ros' not in held_ros_packages.stdout"
   register: install_result
   failed_when: false