diff --git a/plugins/woocommerce/tests/legacy/unit-tests/woocommerce-admin/api/reports-customers.php b/plugins/woocommerce/tests/legacy/unit-tests/woocommerce-admin/api/reports-customers.php
index 6a4edd2dc80..700aa901136 100644
--- a/plugins/woocommerce/tests/legacy/unit-tests/woocommerce-admin/api/reports-customers.php
+++ b/plugins/woocommerce/tests/legacy/unit-tests/woocommerce-admin/api/reports-customers.php
@@ -390,7 +390,7 @@ class WC_Admin_Tests_API_Reports_Customers extends WC_REST_Unit_Test_Case {
 		// Test filter_empty with new customer.
 		$customer = WC_Helper_Customer::create_customer( 'customer_11', 'password', 'customer@example.com' );
 		$customer->set_postcode( null );
-		$customer->set_first_name( "customer_andrei" );
+		$customer->set_first_name( 'customer_andrei' );
 		$customer->save();
 		WC_Helper_Queue::run_all_pending();
 
@@ -415,20 +415,20 @@ class WC_Admin_Tests_API_Reports_Customers extends WC_REST_Unit_Test_Case {
 		$reports  = $response->get_data();
 		$this->assertCount( 10, $reports );
 
-		// Test filter_empty param by email.
+		// Test filter_empty param by state.
 		$request->set_query_params(
 			array(
-				'filter_empty' => array( 'email' ),
+				'filter_empty' => array( 'state' ),
 			)
 		);
 		$response = $this->server->dispatch( $request );
 		$reports  = $response->get_data();
 		$this->assertCount( 11, $reports );
 
-		// Test filter_empty param by state.
+		// Test filter_empty param by email.
 		$request->set_query_params(
 			array(
-				'filter_empty' => array( 'state' ),
+				'filter_empty' => array( 'email' ),
 			)
 		);
 		$response = $this->server->dispatch( $request );