diff --git a/sources/extra_files/app/preferences.d/non-free_policy b/sources/extra_files/app/preferences.d/non-free_policy
new file mode 100644
index 0000000..4353574
--- /dev/null
+++ b/sources/extra_files/app/preferences.d/non-free_policy
@@ -0,0 +1,4 @@
+Explanation: Disable packages from non-free tree by default (Zabbix app install with non-free option enable)
+Package: *
+Pin: release o=Debian,a=stable,l=Debian,c=non-free
+Pin-Priority: -1
\ No newline at end of file