diff --git a/modules/photon-cdn.php b/modules/photon-cdn.php
index 9c936cc773538..27b8db1ada1b1 100644
--- a/modules/photon-cdn.php
+++ b/modules/photon-cdn.php
@@ -118,8 +118,8 @@ public static function fix_script_relative_path( $relative, $src ) {
 			return substr( $src, 1 + $strpos );
 		}
 
-		// Reverse cdnize_plugin_assets for loading the path
-		if ( preg_match( '#' . preg_quote( self::CDN, '#' ) . 'p/[^/]+/[^/]+/(.*)$#', $src, $m ) ) {
+		// Get the local path from a URL which was CDN'ed by cdnize_plugin_assets().
+		if ( preg_match( '#^' . preg_quote( self::CDN, '#' ) . 'p/[^/]+/[^/]+/(.*)$#', $src, $m ) ) {
 			return $m[1];
 		}