diff --git a/src/wp-includes/class-wp-list-util.php b/src/wp-includes/class-wp-list-util.php
index 8c1d897475..fbc171e0c6 100644
--- a/src/wp-includes/class-wp-list-util.php
+++ b/src/wp-includes/class-wp-list-util.php
@@ -116,12 +116,16 @@ class WP_List_Util {
 			foreach ( $args as $m_key => $m_value ) {
 				if ( is_array( $obj ) ) {
 					// Treat object as an array.
-					if ( array_key_exists( $m_key, $obj ) && ( $m_value === $obj[ $m_key ] ) ) {
+					if ( array_key_exists( $m_key, $obj )
+						&& ( (string) $m_value === (string) $obj[ $m_key ] )
+					) {
 						$matched++;
 					}
 				} elseif ( is_object( $obj ) ) {
 					// Treat object as an object.
-					if ( isset( $obj->{$m_key} ) && ( $m_value === $obj->{$m_key} ) ) {
+					if ( isset( $obj->{$m_key} )
+						&& ( (string) $m_value === (string) $obj->{$m_key} )
+					) {
 						$matched++;
 					}
 				}
@@ -276,7 +280,7 @@ class WP_List_Util {
 				continue;
 			}
 
-			if ( $a[ $field ] === $b[ $field ] ) {
+			if ( (string) $a[ $field ] === (string) $b[ $field ] ) {
 				continue;
 			}
 
diff --git a/tests/phpunit/tests/functions/wpListFilter.php b/tests/phpunit/tests/functions/wpListFilter.php
index bc8acdc63a..042325227e 100644
--- a/tests/phpunit/tests/functions/wpListFilter.php
+++ b/tests/phpunit/tests/functions/wpListFilter.php
@@ -210,6 +210,20 @@ class Tests_Functions_wpListFilter extends WP_UnitTestCase {
 					),
 				),
 			),
+			'string to int comparison' => array(
+				array(
+					(object) array(
+						'foo' => '1',
+					),
+				),
+				array( 'foo' => 1 ),
+				'AND',
+				array(
+					0 => (object) array(
+						'foo' => '1',
+					),
+				),
+			),
 		);
 	}
 }