diff --git a/defaults/main.yml b/defaults/main.yml
index c4df42a..4235b00 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -160,6 +160,9 @@ magnum_pip_packages:
   - python-memcached
   - uwsgi
 
+# Specific pip packages provided by the user
+magnum_user_pip_packages: []
+
 magnum_optional_oslomsg_amqp1_pip_packages:
   - oslo.messaging[amqp1]
 
diff --git a/tasks/magnum_install.yml b/tasks/magnum_install.yml
index 766baec..bc6106f 100644
--- a/tasks/magnum_install.yml
+++ b/tasks/magnum_install.yml
@@ -41,7 +41,8 @@
     venv_install_destination_path: "{{ magnum_bin | dirname }}"
     venv_install_distro_package_list: "{{ magnum_distro_packages }}"
     venv_pip_install_args: "{{ magnum_pip_install_args }}"
-    venv_pip_packages: "{{ (magnum_oslomsg_amqp1_enabled | bool) | ternary(magnum_pip_packages + magnum_optional_oslomsg_amqp1_pip_packages, magnum_pip_packages) }}"
+    venv_pip_packages: "{{ magnum_pip_packages | union(magnum_user_pip_packages) +
+    (magnum_oslomsg_amqp1_enabled | bool) | ternary(magnum_optional_oslomsg_amqp1_pip_packages, []) }}"
     venv_facts_when_changed:
       - section: "magnum"
         option: "venv_tag"