diff --git a/changelog.txt b/changelog.txt
index 306397f6d..d0119b212 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -4,6 +4,7 @@
 * Fix - DCC orders randomly failing #503
 * Fix - Multi-currency broke #481
 * Fix - Address information from PayPal shortcut flow not loaded #451
+* Fix - WooCommerce as mu-plugin is not detected as active #461
 * Enhancement - Improve onboarding flow, allow no card processing #443
 * Enhancement - Add Germany to supported ACDC countries #459
 * Enhancement - Add filters to allow ACDC for countries #437
diff --git a/readme.txt b/readme.txt
index bc7fda59e..1a3bc74a0 100644
--- a/readme.txt
+++ b/readme.txt
@@ -85,6 +85,7 @@ Follow the steps below to connect the plugin to your PayPal account:
 * Fix - DCC orders randomly failing #503
 * Fix - Multi-currency broke #481
 * Fix - Address information from PayPal shortcut flow not loaded #451
+* Fix - WooCommerce as mu-plugin is not detected as active #461
 * Enhancement - Improve onboarding flow, allow no card processing #443
 * Enhancement - Add Germany to supported ACDC countries #459
 * Enhancement - Add filters to allow ACDC for countries #437
diff --git a/woocommerce-paypal-payments.php b/woocommerce-paypal-payments.php
index 8bb582382..6c7b42d83 100644
--- a/woocommerce-paypal-payments.php
+++ b/woocommerce-paypal-payments.php
@@ -41,10 +41,7 @@ define( 'PPCP_FLAG_SUBSCRIPTION', true );
 	function init() {
 		$root_dir = __DIR__;
 
-		if ( ! function_exists( 'is_plugin_active' ) ) {
-			require_once ABSPATH . '/wp-admin/includes/plugin.php';
-		}
-		if ( ! is_plugin_active( 'woocommerce/woocommerce.php' ) ) {
+		if ( ! is_woocommerce_activated() ) {
 			add_action(
 				'admin_notices',
 				function() {
@@ -124,10 +121,7 @@ define( 'PPCP_FLAG_SUBSCRIPTION', true );
 	add_filter(
 		'plugin_action_links_' . plugin_basename( __FILE__ ),
 		function( $links ) {
-			if ( ! function_exists( 'is_plugin_active' ) ) {
-				require_once ABSPATH . '/wp-admin/includes/plugin.php';
-			}
-			if ( ! is_plugin_active( 'woocommerce/woocommerce.php' ) ) {
+			if ( ! is_woocommerce_activated() ) {
 				return $links;
 			}
 
@@ -144,4 +138,13 @@ define( 'PPCP_FLAG_SUBSCRIPTION', true );
 		}
 	);
 
+	/**
+	 * Check if WooCommerce is active.
+	 *
+	 * @return bool true if WooCommerce is active, otherwise false.
+	 */
+	function is_woocommerce_activated(): bool {
+		return class_exists( 'woocommerce' );
+	}
+
 } )();