diff --git a/roles/matrix-bridge-hookshot/tasks/init.yml b/roles/matrix-bridge-hookshot/tasks/init.yml
index 7dc781c6d..67b793d44 100644
--- a/roles/matrix-bridge-hookshot/tasks/init.yml
+++ b/roles/matrix-bridge-hookshot/tasks/init.yml
@@ -15,12 +15,12 @@
     matrix_synapse_container_extra_arguments: >
       {{ matrix_synapse_container_extra_arguments|default([]) }}
       +
-      ["--mount type=bind,src={{ matrix_hookshot_base_path }}/registration.yaml,dst=/hookshot-registration.yaml,ro"]
+      ["--mount type=bind,src={{ matrix_hookshot_base_path }}/registration.yml,dst=/hookshot-registration.yml,ro"]
 
     matrix_synapse_app_service_config_files: >
       {{ matrix_synapse_app_service_config_files|default([]) }}
       +
-      {{ ["/hookshot-registration.yaml"] }}
+      {{ ["/hookshot-registration.yml"] }}
   when: matrix_hookshot_enabled|bool
 
 - block:
diff --git a/roles/matrix-bridge-hookshot/tasks/setup_install.yml b/roles/matrix-bridge-hookshot/tasks/setup_install.yml
index 0caba20fc..5bd726a4c 100644
--- a/roles/matrix-bridge-hookshot/tasks/setup_install.yml
+++ b/roles/matrix-bridge-hookshot/tasks/setup_install.yml
@@ -31,10 +31,10 @@
   become_user: "{{ matrix_user_username }}"
   when: "not hookshot_passkey_file.stat.exists"
 
-- name: Ensure hookshot config.yaml installed if provided
+- name: Ensure hookshot config.yml installed if provided
   copy:
     content: "{{ matrix_hookshot_configuration|to_nice_yaml }}"
-    dest: "{{ matrix_hookshot_base_path }}/config.yaml"
+    dest: "{{ matrix_hookshot_base_path }}/config.yml"
     mode: 0644
     owner: "{{ matrix_user_username }}"
     group: "{{ matrix_user_groupname }}"
@@ -55,10 +55,10 @@
     msg: "Your hookshot configuration did not pass validation:\n{{ hookshot_config_validation_result.stdout }}\n{{ hookshot_config_validation_result.stderr }}"
   when: "hookshot_config_validation_result.rc > 0"
 
-- name: Ensure hookshot registration.yaml installed if provided
+- name: Ensure hookshot registration.yml installed if provided
   copy:
     content: "{{ matrix_hookshot_registration|to_nice_yaml }}"
-    dest: "{{ matrix_hookshot_base_path }}/registration.yaml"
+    dest: "{{ matrix_hookshot_base_path }}/registration.yml"
     mode: 0644
     owner: "{{ matrix_user_username }}"
     group: "{{ matrix_user_groupname }}"