diff --git a/packages/pages/src/vite-plugin/modules/plugin.ts b/packages/pages/src/vite-plugin/modules/plugin.ts
index 7035fb061..edd1ae651 100644
--- a/packages/pages/src/vite-plugin/modules/plugin.ts
+++ b/packages/pages/src/vite-plugin/modules/plugin.ts
@@ -15,6 +15,7 @@ import postcss from "postcss";
 import nested from "postcss-nested";
 import { createModuleLogger } from "../../common/src/module/internal/logger.js";
 import { getModuleName } from "../../common/src/module/internal/getModuleConfig.js";
+import { scopedViteConfigPath } from "../../util/viteConfig.js";
 
 type FileInfo = {
   path: string;
@@ -61,6 +62,11 @@ export const buildModules = async (
     );
   }
 
+  const viteConfig = await import(
+    scopedViteConfigPath(projectStructure.config.scope) ?? ""
+  );
+  const rollupOptions = viteConfig?.default?.build?.rollupOptions;
+
   for (const [moduleName, fileInfo] of Object.entries(filepaths)) {
     logger.info = (msg, options) => {
       if (msg.includes("building for production")) {
@@ -121,6 +127,7 @@ export const buildModules = async (
             format: "umd",
             entryFileNames: `${moduleName}.umd.js`,
           },
+          ...rollupOptions,
         },
         reportCompressedSize: false,
       },
diff --git a/packages/pages/src/vite-plugin/serverless-functions/plugin.ts b/packages/pages/src/vite-plugin/serverless-functions/plugin.ts
index 7c1d7da45..66e245c79 100644
--- a/packages/pages/src/vite-plugin/serverless-functions/plugin.ts
+++ b/packages/pages/src/vite-plugin/serverless-functions/plugin.ts
@@ -8,6 +8,7 @@ import { processEnvVariables } from "../../util/processEnvVariables.js";
 import { FunctionMetadataParser } from "../../common/src/function/internal/functionMetadataParser.js";
 import { nodePolyfills } from "vite-plugin-node-polyfills";
 import pc from "picocolors";
+import { scopedViteConfigPath } from "../../util/viteConfig.js";
 
 export const buildServerlessFunctions = async (
   projectStructure: ProjectStructure
@@ -41,6 +42,11 @@ export const buildServerlessFunctions = async (
   const logger = createLogger();
   const loggerInfo = logger.info;
 
+  const viteConfig = await import(
+    scopedViteConfigPath(projectStructure.config.scope) ?? ""
+  );
+  const rollupOptions = viteConfig?.default?.build?.rollupOptions;
+
   for (const [name, filepath] of Object.entries(filepaths)) {
     logger.info = (msg, options) => {
       if (msg.includes("building for production")) {
@@ -75,6 +81,7 @@ export const buildServerlessFunctions = async (
             // must use this over lib.fileName otherwise it always ends in .js
             entryFileNames: `[name]/mod.ts`,
           },
+          ...rollupOptions,
         },
         reportCompressedSize: false,
       },