diff --git a/packages/pwa-kit-extension-sdk/src/configs/webpack/overrides-resolver-loader.ts b/packages/pwa-kit-extension-sdk/src/configs/webpack/overrides-resolver-loader.ts
index 08f0ce5fc7..078445bc4d 100644
--- a/packages/pwa-kit-extension-sdk/src/configs/webpack/overrides-resolver-loader.ts
+++ b/packages/pwa-kit-extension-sdk/src/configs/webpack/overrides-resolver-loader.ts
@@ -66,8 +66,8 @@ const OverrideResolverLoader = function (this: LoaderContext<any>) {
     }
 
     // Lets use the compiler configuration to ensure we are resolving the correct file extensions.
-    const compilerOptions = this._compiler!.options
-    const extensions = compilerOptions.resolve?.extensions || []
+    const compilerOptions = this._compiler?.options
+    const extensions = compilerOptions?.resolve?.extensions || []
     const basedir = options?.baseDir || process.cwd()
     const applicationExtensions = compiler?.custom?.extensions || []