diff --git a/packages/create-webpack-app/src/generators/loader/default.ts b/packages/create-webpack-app/src/generators/loader/default.ts
index 1c5faf48e68..0a4d73607d3 100644
--- a/packages/create-webpack-app/src/generators/loader/default.ts
+++ b/packages/create-webpack-app/src/generators/loader/default.ts
@@ -17,7 +17,7 @@ export default async function (plop: NodePlopAPI) {
   plop.setHelper("makeLoaderName", (name: string) => {
     name = plop.getHelper("kebabCase")(name);
 
-    if (!/loader$/.test(name)) {
+    if (!name.endsWith("loader")) {
       name += "-loader";
     }
     return name;
diff --git a/packages/webpack-cli/src/webpack-cli.ts b/packages/webpack-cli/src/webpack-cli.ts
index fef86cd1ef0..6f397689eff 100644
--- a/packages/webpack-cli/src/webpack-cli.ts
+++ b/packages/webpack-cli/src/webpack-cli.ts
@@ -1804,7 +1804,7 @@ class WebpackCLI implements IWebpackCLI {
       // Fallback `.cts` to `.ts`
       // TODO implement good `.mts` support after https://github.com/gulpjs/rechoir/issues/43
       // For ESM and `.mts` you need to use: 'NODE_OPTIONS="--loader ts-node/esm" webpack-cli --config ./webpack.config.mts'
-      if (!interpreted && /\.cts$/.test(ext)) {
+      if (!interpreted && ext.endsWith(".cts")) {
         interpreted = interpret.jsVariants[".ts"];
       }