diff --git a/sources/extra_files/app/preferences.d/.gitkeep b/sources/extra_files/app/preferences.d/.gitkeep
deleted file mode 100644
index e69de29..0000000
diff --git a/sources/extra_files/app/preferences.d/non-free_policy b/sources/extra_files/app/preferences.d/non-free_policy
deleted file mode 100644
index 4353574..0000000
--- a/sources/extra_files/app/preferences.d/non-free_policy
+++ /dev/null
@@ -1,4 +0,0 @@
-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
diff --git a/sources/extra_files/app/preferences.d/snmp-mibs-downloader_nonfree b/sources/extra_files/app/preferences.d/snmp-mibs-downloader_nonfree
deleted file mode 100644
index 1fb7921..0000000
--- a/sources/extra_files/app/preferences.d/snmp-mibs-downloader_nonfree
+++ /dev/null
@@ -1,4 +0,0 @@
-Explanation: Enable package snmp-mibs-downloader from non-free tree (Zabbix app install with non-free option enable)
-Package: snmp-mibs-downloader
-Pin: release o=Debian,a=stable,l=Debian,c=non-free
-Pin-Priority: 600
\ No newline at end of file