diff --git a/defaults/main.yml b/defaults/main.yml
index 07f03b3e..a0b747d8 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -397,6 +397,9 @@ horizon_pip_packages:
   - python-memcached
   - python-keystoneclient
 
+# Specific pip packages provided by the user
+horizon_user_pip_packages: []
+
 # Optional pip packages for additional dashboards
 # TODO(odyssey4me):
 # Simplify this when we are no longer using the py_pkgs plugin
diff --git a/tasks/horizon_install_source.yml b/tasks/horizon_install_source.yml
index c87f21d0..9e82175d 100644
--- a/tasks/horizon_install_source.yml
+++ b/tasks/horizon_install_source.yml
@@ -67,7 +67,7 @@
     venv_install_destination_path: "{{ horizon_bin | dirname }}"
     venv_pip_install_args: "{{ horizon_pip_install_args }}"
     venv_pip_packages: >-
-      {{ horizon_pip_packages + horizon_optional_pip_packages +
+      {{ horizon_pip_packages | union(horizon_user_pip_packages) + horizon_optional_pip_packages +
          (horizon_enable_blazar_ui | bool) | ternary(horizon_blazar_optional_pip_packages, []) +
          (horizon_enable_cloudkitty_ui | bool) | ternary(horizon_cloudkitty_optional_pip_packages, []) +
          (horizon_enable_designate_ui | bool) | ternary(horizon_designate_optional_pip_packages, []) +