diff --git a/tasks/main.yml b/tasks/main.yml
index 729db6c..9e514f9 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -7,7 +7,12 @@
       get_url: url={{ orientdb_binary_distribution_url }} dest={{ orientdb_base_dir }}/{{ orientdb_tar_file }} validate_certs=no
 
     - name: Unpack the orientdb distribution
-      unarchive: src={{ orientdb_base_dir }}/{{ orientdb_tar_file }} dest={{ orientdb_base_dir }} copy=no
+      unarchive:
+        src: '{{ orientdb_base_dir }}/{{ orientdb_tar_file }}'
+        dest: '{{ orientdb_base_dir }}'
+        copy: no
+        owner: root
+        group: root
       args:
         creates: '{{ orientdb_home_prefix }}/{{ orientdb_user }}/{{ orientdb_dir }}-{{ orientdb_version }}'
 
@@ -93,6 +98,17 @@
       notify: Restart orientdb
       tags: [ 'orientdb', 'orientdb_config' ]
 
+    - name: Set the permissions of some configuration files
+      ansible.builtin.file:
+        dest: '{{ orientdb_install_dir }}/config/{{ item }}'
+        owner: '{{ orientdb_user }}'
+        group: '{{ orientdb_user }}'
+        mode: '0640'
+      loop:
+        - custom-sql-functions.json
+      notify: Restart orientdb
+      tags: [ 'orientdb', 'orientdb_config' ]
+
     - name: Install the nagios nrpe configuration
       template: src=orientdb-nrpe.cfg.j2 dest={{ nrpe_include_dir }}/orientdb-nrpe.cfg owner=root group=root mode=0444
       notify: Reload NRPE server