diff --git a/src/wp-includes/class-wp-xmlrpc-server.php b/src/wp-includes/class-wp-xmlrpc-server.php
index 8cbf6d977f5a2..2d7fe58f7cdf5 100644
--- a/src/wp-includes/class-wp-xmlrpc-server.php
+++ b/src/wp-includes/class-wp-xmlrpc-server.php
@@ -780,6 +780,7 @@ public function wp_getUsersBlogs( $args ) {
 				'blogid'    => (string) $blog_id,
 				'blogName'  => get_option( 'blogname' ),
 				'xmlrpc'    => site_url( 'xmlrpc.php', 'rpc' ),
+				'siteIcon'  => get_site_icon_url( 512 ),
 			);
 
 			restore_current_blog();
@@ -4867,6 +4868,7 @@ public function blogger_getUsersBlogs( $args ) {
 			'blogid'   => '1',
 			'blogName' => get_option( 'blogname' ),
 			'xmlrpc'   => site_url( 'xmlrpc.php', 'rpc' ),
+			'siteIcon' => get_site_icon_url( 512 ),
 		);
 
 		return array( $struct );
diff --git a/tests/phpunit/tests/xmlrpc/wp/getUsersBlogs.php b/tests/phpunit/tests/xmlrpc/wp/getUsersBlogs.php
new file mode 100644
index 0000000000000..63a5854c4f37b
--- /dev/null
+++ b/tests/phpunit/tests/xmlrpc/wp/getUsersBlogs.php
@@ -0,0 +1,60 @@
+<?php
+
+/**
+ * @group xmlrpc
+ * @group user
+ */
+class Tests_XMLRPC_wp_getUsersBlogs extends WP_XMLRPC_UnitTestCase {
+
+	public function test_empty_site_icon() {
+		$subscriber_id = $this->make_user_by_role( 'subscriber' );
+
+		// wp_getUsersBlogs
+		$result = $this->myxmlrpcserver->wp_getUsersBlogs( array( 'subscriber', 'subscriber' ) );
+		$this->assertNotIXRError( $result );
+		$this->assertIsArray( $result );
+		$this->assertArrayHasKey( 0, $result );
+		$this->assertArrayHasKey( 'siteIcon', $result[0] );
+		$this->assertSame( '', $result[0]['siteIcon'] );
+
+		// blogger_getUsersBlogs
+		$result_blogger = $this->myxmlrpcserver->blogger_getUsersBlogs( array( '', 'subscriber', 'subscriber' ) );
+		$this->assertNotIXRError( $result_blogger );
+		$this->assertIsArray( $result_blogger );
+		$this->assertArrayHasKey( 0, $result_blogger );
+		$this->assertArrayHasKey( 'siteIcon', $result_blogger[0] );
+		$this->assertSame( '', $result_blogger[0]['siteIcon'] );
+	}
+
+	public function test_with_site_icon() {
+		$subscriber_id = $this->make_user_by_role( 'subscriber' );
+
+		// Create an attachment and set it as site_icon
+		$attachment_id = self::factory()->attachment->create_object(
+			array(
+				'file'           => DIR_TESTDATA . '/images/test-image.jpg',
+				'post_mime_type' => 'image/jpeg',
+				'post_type'      => 'attachment',
+			)
+		);
+		update_option( 'site_icon', $attachment_id );
+
+		$expected_url = get_site_icon_url( 512 );
+
+		// wp_getUsersBlogs
+		$result = $this->myxmlrpcserver->wp_getUsersBlogs( array( 'subscriber', 'subscriber' ) );
+		$this->assertNotIXRError( $result );
+		$this->assertIsArray( $result );
+		$this->assertArrayHasKey( 0, $result );
+		$this->assertArrayHasKey( 'siteIcon', $result[0] );
+		$this->assertSame( $expected_url, $result[0]['siteIcon'] );
+
+		// blogger_getUsersBlogs
+		$result_blogger = $this->myxmlrpcserver->blogger_getUsersBlogs( array( '', 'subscriber', 'subscriber' ) );
+		$this->assertNotIXRError( $result_blogger );
+		$this->assertIsArray( $result_blogger );
+		$this->assertArrayHasKey( 0, $result_blogger );
+		$this->assertArrayHasKey( 'siteIcon', $result_blogger[0] );
+		$this->assertSame( $expected_url, $result_blogger[0]['siteIcon'] );
+	}
+}