diff --git a/src/Frontend/Compiler/JsCompiler.php b/src/Frontend/Compiler/JsCompiler.php
index 1549ecc616..fe47602492 100644
--- a/src/Frontend/Compiler/JsCompiler.php
+++ b/src/Frontend/Compiler/JsCompiler.php
@@ -65,7 +65,7 @@ protected function save(string $file, array $sources): bool
      */
     protected function format(string $string): string
     {
-        return preg_replace('~//# sourceMappingURL.*$~m', '', $string).";\n";
+        return preg_replace('~//# sourceMappingURL.*$~m', '', $string)."\n";
     }
 
     /**