diff --git a/packages/vite-plugin-cloudflare/src/cloudflare-environment.ts b/packages/vite-plugin-cloudflare/src/cloudflare-environment.ts
index c4d93fc2..f49e4032 100644
--- a/packages/vite-plugin-cloudflare/src/cloudflare-environment.ts
+++ b/packages/vite-plugin-cloudflare/src/cloudflare-environment.ts
@@ -179,7 +179,7 @@ export function createCloudflareEnvironmentOptions(
 				],
 			},
 		},
-		keepProcessEnv: true,
+		keepProcessEnv: false,
 	};
 }
 
diff --git a/playground/module-resolution/__tests__/module-resolution.spec.ts b/playground/module-resolution/__tests__/module-resolution.spec.ts
index 3f90891a..836d97cc 100644
--- a/playground/module-resolution/__tests__/module-resolution.spec.ts
+++ b/playground/module-resolution/__tests__/module-resolution.spec.ts
@@ -76,9 +76,7 @@ describe('module resolution', async () => {
 	 *  special meaning to us.
 	 */
 	describe('third party packages resolutions', () => {
-		// TODO: we skip this test on build because a `ReferenceError: process is not defined` is thrown
-		//       (https://github.com/flarelabs-net/vite-plugin-cloudflare/issues/82)
-		test.skipIf(isBuild)('react', async () => {
+		test('react', async () => {
 			const result = await getJsonResponse('/third-party/react');
 			expect(result).toEqual({
 				'(react) reactVersionsMatch': true,