diff --git a/packages/gatsby-plugin-netlify-cms/src/gatsby-node.js b/packages/gatsby-plugin-netlify-cms/src/gatsby-node.js
index 5b3f4c3d15d82..8498f7a19e8fb 100644
--- a/packages/gatsby-plugin-netlify-cms/src/gatsby-node.js
+++ b/packages/gatsby-plugin-netlify-cms/src/gatsby-node.js
@@ -160,7 +160,13 @@ exports.onCreateWebpackConfig = (
      * config, they cause issues for our pre-bundled code.
      */
     mode: stage === `develop` ? `development` : `production`,
-    optimization: {},
+    optimization: {
+      /**
+       * Without this, node can get out of memory errors
+       * when building for production.
+       */
+      minimizer: gatsbyConfig.optimization.minimizer,
+    },
     devtool: stage === `develop` ? `cheap-module-source-map` : `source-map`,
   }