diff --git a/roles/8-mgmt-tools/tasks/main.yml b/roles/8-mgmt-tools/tasks/main.yml
index eab0f6180..4668be835 100644
--- a/roles/8-mgmt-tools/tasks/main.yml
+++ b/roles/8-mgmt-tools/tasks/main.yml
@@ -36,7 +36,7 @@
 - name: TEAMVIEWER
   include_role:
     name: teamviewer
-  when: teamviewer_install
+  when: teamviewer_install is defined and teamviewer_install
   tags: teamviewer
 
 - name: VNSTAT