diff --git a/roles/wsgi_website/tasks/main.yml b/roles/wsgi_website/tasks/main.yml
index 0bbea9ad15eb05557c3db6cbfe8fa07d326a5b19..1459a1109aeb52e59904954928962fcd782ab5a7 100644
--- a/roles/wsgi_website/tasks/main.yml
+++ b/roles/wsgi_website/tasks/main.yml
@@ -74,8 +74,9 @@
     name: "{{ item }}"
     state: present
   with_items: "{{ packages }}"
+  register: install_extra_packages
   notify:
-    - "Restart website {{ fqdn }}"
+    - Restart WSGI services
 
 - name: Set-up MariaDB mysql_config symbolic link for compatibility (workaround for Debian bug 766996)
   file:
@@ -134,8 +135,9 @@
     - package: futures
       version: "{{ futures_version }}"
   when: "not wsgi_requirements"
+  register: install_wsgi_server
   notify:
-    - "Restart website {{ fqdn }}"
+    - Restart WSGI services
 
 - include: requirements.yml
   when: "wsgi_requirements"
@@ -148,8 +150,9 @@
     state: present
     virtualenv: "{{ home }}/virtualenv"
   with_items: "{{ virtualenv_packages }}"
+  register: install_additional_packages_in_virtualenv
   notify:
-    - "Restart website {{ fqdn }}"
+    - Restart WSGI services
 
 - name: Deploy systemd socket configuration for website
   template:
@@ -158,9 +161,10 @@
     owner: root
     group: root
     mode: 0644
+  register: deploy_systemd_socket_configuration
   notify:
     - Reload systemd
-    - "Restart website {{ fqdn }}"
+    - Restart WSGI services
 
 - name: Deploy systemd service configuration for website
   template:
@@ -169,9 +173,10 @@
     owner: root
     group: root
     mode: 0644
+  register: deploy_systemd_service_configuration
   notify:
     - Reload systemd
-    - "Restart website {{ fqdn }}"
+    - Restart WSGI services
 
 - name: Enable the website service
   service:
@@ -234,6 +239,32 @@
   notify:
     - Restart nginx
 
+- name: Set-up empty list of WSGI services to restart
+  set_fact:
+    wsgi_services_to_restart: []
+  when: "wsgi_services_to_restart is not defined"
+  tags:
+    - handlers
+
+- name: Add service to list of WSGI services to restart
+  set_fact:
+    wsgi_services_to_restart: "{{ wsgi_services_to_restart + [ fqdn ] }}"
+  when: |
+    fqdn not in wsgi_services_to_restart and
+    ((install_extra_packages is defined and install_extra_packages.changed) or
+    (install_wsgi_server is defined and install_wsgi_server.changed) or
+    (install_additional_packages_in_virtualenv is defined and install_additional_packages_in_virtualenv.changed) or
+    (deploy_systemd_socket_configuration is defined and deploy_systemd_socket_configuration.changed) or
+    (deploy_systemd_service_configuration is defined and deploy_systemd_service_configuration.changed) or
+    (install_gunciron_via_requirements is defined and install_gunciron_via_requirements.changed) or
+    (handlers | default(False) | bool() == True))
+  tags:
+    - handlers
+    # [ANSIBLE0016] Tasks that run when changed should likely be handlers
+    #   This specific task is used in order to work around inability of Ansible
+    #   to provide properly parametrised handlers for reusable roles.
+    - skip_ansible_lint
+
 - name: Explicitly run all handlers
   include: ../handlers/main.yml
   when: "handlers | default(False) | bool() == True"