diff --git a/plugins/woocommerce/changelog/fix-fix-php-docblock-for-wc-cli-runner-register-route-commands-47598 b/plugins/woocommerce/changelog/fix-fix-php-docblock-for-wc-cli-runner-register-route-commands-47598
new file mode 100644
index 00000000000..9f84611a6c2
--- /dev/null
+++ b/plugins/woocommerce/changelog/fix-fix-php-docblock-for-wc-cli-runner-register-route-commands-47598
@@ -0,0 +1,4 @@
+Significance: patch
+Type: fix
+
+Updated the PHP DocBlock for WC_CLI_Runner::register_route_commands to correctly specify the first parameter's type as being a WC_CLI_REST_Command object rather than a string.
diff --git a/plugins/woocommerce/includes/cli/class-wc-cli-runner.php b/plugins/woocommerce/includes/cli/class-wc-cli-runner.php
index 1e5e00fe6e5..9225a210ae0 100644
--- a/plugins/woocommerce/includes/cli/class-wc-cli-runner.php
+++ b/plugins/woocommerce/includes/cli/class-wc-cli-runner.php
@@ -98,10 +98,10 @@ class WC_CLI_Runner {
 	 * Generates command information and tells WP CLI about all
 	 * commands available from a route.
 	 *
-	 * @param string $rest_command WC-API command.
-	 * @param string $route Path to route endpoint.
-	 * @param array  $route_data Command data.
-	 * @param array  $command_args WP-CLI command arguments.
+	 * @param WC_CLI_REST_Command $rest_command WC-API command.
+	 * @param string              $route Path to route endpoint.
+	 * @param array               $route_data Command data.
+	 * @param array               $command_args WP-CLI command arguments.
 	 */
 	private static function register_route_commands( $rest_command, $route, $route_data, $command_args = array() ) {
 		// Define IDs that we are looking for in the routes (in addition to id)