diff --git a/docs/roles/cache_clear/cache_clear-opcache.md b/docs/roles/cache_clear/cache_clear-opcache.md
index c7959bcb..465307e2 100644
--- a/docs/roles/cache_clear/cache_clear-opcache.md
+++ b/docs/roles/cache_clear/cache_clear-opcache.md
@@ -19,6 +19,7 @@ cache_clear_opcache:
   clear_opcache: true
   clear_apcu: false
   clear_stat: false
+  # cachetool_bin: "/path/to/cachetool.phar" # see _init for paths if undefined
 
 ```
 
diff --git a/roles/_init/tasks/main.yml b/roles/_init/tasks/main.yml
index 7f28f3ff..f68be544 100644
--- a/roles/_init/tasks/main.yml
+++ b/roles/_init/tasks/main.yml
@@ -23,7 +23,14 @@
     live_symlink_dest: "{{ live_symlink_dest | default('{{ deploy_base_path }}/live.{{ project_name }}_{{ build_type }}') }}"
 - name: Define opcache cachetool path.
   ansible.builtin.set_fact:
-    cachetool_bin: "{{ cachetool_bin | default('{{ deploy_base_path }}/cachetool.phar') }}"
+    cachetool_bin: "{{ deploy_base_path }}/cachetool.phar"
+  when: cache_clear_opcache.cachetool_bin is not defined
+- name: Set opcache cachetool path from variable.
+  ansible.builtin.set_fact:
+    cachetool_bin: "{{ cache_clear_opcache.cachetool_bin }}"
+  when:
+    - cache_clear_opcache.cachetool_bin is defined
+    - cache_clear_opcache.cachetool_bin | length > 0
 
 # Manipulate variables for SquashFS builds.
 - name: Define image builds base path.
@@ -56,6 +63,7 @@
   when:
     - deploy_code.mount_type is defined
     - deploy_code.mount_type == "squashfs"
+    - cache_clear_opcache.cachetool_bin is not defined
 
 # Gather last known good build directly from symlink.
 # This can happen:
diff --git a/roles/cache_clear/cache_clear-opcache/README.md b/roles/cache_clear/cache_clear-opcache/README.md
index c7959bcb..465307e2 100644
--- a/roles/cache_clear/cache_clear-opcache/README.md
+++ b/roles/cache_clear/cache_clear-opcache/README.md
@@ -19,6 +19,7 @@ cache_clear_opcache:
   clear_opcache: true
   clear_apcu: false
   clear_stat: false
+  # cachetool_bin: "/path/to/cachetool.phar" # see _init for paths if undefined
 
 ```
 
diff --git a/roles/cache_clear/cache_clear-opcache/defaults/main.yml b/roles/cache_clear/cache_clear-opcache/defaults/main.yml
index 97623e62..222325ce 100644
--- a/roles/cache_clear/cache_clear-opcache/defaults/main.yml
+++ b/roles/cache_clear/cache_clear-opcache/defaults/main.yml
@@ -9,3 +9,4 @@ cache_clear_opcache:
   clear_opcache: true
   clear_apcu: false
   clear_stat: false
+  # cachetool_bin: "/path/to/cachetool.phar" # see _init for paths if undefined