diff --git a/packages/angular_devkit/build_angular/src/angular-cli-files/models/webpack-configs/common.ts b/packages/angular_devkit/build_angular/src/angular-cli-files/models/webpack-configs/common.ts
index f05aff592888..9e6db9c0c2bb 100644
--- a/packages/angular_devkit/build_angular/src/angular-cli-files/models/webpack-configs/common.ts
+++ b/packages/angular_devkit/build_angular/src/angular-cli-files/models/webpack-configs/common.ts
@@ -354,6 +354,7 @@ export function getCommonConfig(wco: WebpackConfigOptions): Configuration {
             }
           : {
               ecma: terserEcma,
+              pure_getters: buildOptions.buildOptimizer,
               // PURE comments work best with 3 passes.
               // See https://github.com/webpack/webpack/issues/2899#issuecomment-317425926.
               passes: buildOptions.buildOptimizer ? 3 : 1,