diff --git a/lib/css/CssParser.js b/lib/css/CssParser.js
index 074dd4f83..84b52eb63 100644
--- a/lib/css/CssParser.js
+++ b/lib/css/CssParser.js
@@ -39,7 +39,7 @@ const IMAGE_SET_FUNCTION = /^(-\w+-)?image-set$/i;
 const OPTIONALLY_VENDOR_PREFIXED_KEYFRAMES_AT_RULE = /^@(-\w+-)?keyframes$/;
 const OPTIONALLY_VENDOR_PREFIXED_ANIMATION_PROPERTY =
 	/^(-\w+-)?animation(-name)?$/i;
-const IS_MODULES = /\.module(s)?\.[\w-]+$/i;
+const IS_MODULES = /\.module(s)?\.[^.]+$/i;
 
 /**
  * @param {string} str url string