diff --git a/tasks/main.yml b/tasks/main.yml
index 0dcb8c0..9f39e02 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -1,7 +1,7 @@
 ---
 - name: install basic packages
   apt:
-    pkg: "{{ packages }}"
+    pkg: "{{ packages | dict2items | rejectattr('value', 'none') | map(attribute='key') | list }}"
     update_cache: yes
 
 - name: copy environment