diff --git a/src/index.ts b/src/index.ts
index 720c30b..9da6876 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -439,7 +439,7 @@ function getStyleCode(
       const styleRequestWithoutModule = src + query + attrsQueryWithoutModule
       if (style.module) {
         if (!hasCSSModules) {
-          stylesCode += `const cssModules = script.__cssModules = {}`
+          stylesCode += `\nconst cssModules = script.__cssModules = {}`
           hasCSSModules = true
         }
         stylesCode += genCSSModulesCode(