diff --git a/includes/Checker/Checks/Abstract_File_Check.php b/includes/Checker/Checks/Abstract_File_Check.php
index 582e50471..d693a0376 100644
--- a/includes/Checker/Checks/Abstract_File_Check.php
+++ b/includes/Checker/Checks/Abstract_File_Check.php
@@ -286,7 +286,7 @@ private static function get_files( Check_Context $plugin ) {
 					continue;
 				}
 
-				$file_path = $file->getPathname();
+				$file_path = wp_normalize_path( $file->getPathname() );
 
 				$directories_to_ignore = Plugin_Request_Utility::get_directories_to_ignore();