diff --git a/inc/class-local-stream-wrapper.php b/inc/class-local-stream-wrapper.php
index c134f513..0a3fbf25 100644
--- a/inc/class-local-stream-wrapper.php
+++ b/inc/class-local-stream-wrapper.php
@@ -143,7 +143,7 @@ protected function getLocalPath( $uri = null ) {
 			$uri = $this->uri;
 		}
 		$path = $this->getDirectoryPath() . '/' . $this->getTarget( $uri );
-		$realpath = $path;
+        $realpath = str_replace( '/', DIRECTORY_SEPARATOR, $path ); // ensure check against realpath passes on Windows machines
 
 		$directory = realpath( $this->getDirectoryPath() );
 
diff --git a/inc/class-plugin.php b/inc/class-plugin.php
index 2a27be64..fda496b2 100644
--- a/inc/class-plugin.php
+++ b/inc/class-plugin.php
@@ -157,7 +157,7 @@ public function register_stream_wrapper() {
 	/**
 	 * Get the s3:// path for the bucket.
 	 */
-	public function get_s3_path() {
+	public function get_s3_path() : string {
 		return 's3://' . $this->bucket;
 	}