diff --git a/config/schema/composer_manager.schema.yml b/config/schema/composer_manager.schema.yml
new file mode 100644
index 0000000..2db0bbf
--- /dev/null
+++ b/config/schema/composer_manager.schema.yml
@@ -0,0 +1,18 @@
+# Schema for the configuration files of the Action module.
+
+composer_manager.settings:
+  type: mapping
+  label: 'Composer Manager settings'
+  mapping:
+    vendor_dir:
+      type: string
+      label: 'The vendor directory'
+    file_dir:
+      type: string
+      label: 'The file directory'
+    autobuild_file:
+      type: boolean
+      label: "Autorebuild the composer.json file when a module is enabled/disabled."
+    autobuild_packages:
+      type: boolean
+      label: "Autorebuild packages"
-- 
2.2.1