diff --git a/src/wp-admin/includes/class-wp-ms-sites-list-table.php b/src/wp-admin/includes/class-wp-ms-sites-list-table.php
index 7ec2ba2542..3b3c7a88a6 100644
--- a/src/wp-admin/includes/class-wp-ms-sites-list-table.php
+++ b/src/wp-admin/includes/class-wp-ms-sites-list-table.php
@@ -289,8 +289,8 @@ class WP_MS_Sites_List_Table extends WP_List_Table {
 		if ( current_user_can( 'delete_sites' ) ) {
 			$actions['delete'] = __( 'Delete' );
 		}
-		$actions['spam']    = _x( 'Mark as Spam', 'site' );
-		$actions['notspam'] = _x( 'Not Spam', 'site' );
+		$actions['spam']    = _x( 'Mark as spam', 'site' );
+		$actions['notspam'] = _x( 'Not spam', 'site' );
 
 		return $actions;
 	}
diff --git a/src/wp-admin/includes/class-wp-ms-users-list-table.php b/src/wp-admin/includes/class-wp-ms-users-list-table.php
index 3775bce26f..3b9670750d 100644
--- a/src/wp-admin/includes/class-wp-ms-users-list-table.php
+++ b/src/wp-admin/includes/class-wp-ms-users-list-table.php
@@ -114,8 +114,8 @@ class WP_MS_Users_List_Table extends WP_List_Table {
 		if ( current_user_can( 'delete_users' ) ) {
 			$actions['delete'] = __( 'Delete' );
 		}
-		$actions['spam']    = _x( 'Mark as Spam', 'user' );
-		$actions['notspam'] = _x( 'Not Spam', 'user' );
+		$actions['spam']    = _x( 'Mark as spam', 'user' );
+		$actions['notspam'] = _x( 'Not spam', 'user' );
 
 		return $actions;
 	}