diff --git a/package.json b/package.json
index 1b670092..e11d6512 100644
--- a/package.json
+++ b/package.json
@@ -122,6 +122,7 @@
     "@babel/plugin-transform-runtime": "^7.12.10",
     "@reduxjs/toolkit": "^1.5.0",
     "@rollup/plugin-babel": "^5.2.2",
+    "@rollup/plugin-replace": "^2.3.4",
     "@rollup/plugin-typescript": "^8.0.0",
     "@size-limit/preset-small-lib": "^4.6.0",
     "@testing-library/react": "^11.1.0",
diff --git a/rollup.config.js b/rollup.config.js
index 3695ef7f..0ba66d15 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -1,6 +1,7 @@
 import babel from '@rollup/plugin-babel';
 import typescript from '@rollup/plugin-typescript';
 import { terser } from 'rollup-plugin-terser';
+import replace from '@rollup/plugin-replace';
 
 /** @type {import("rollup").RollupOptions} */
 const defaultConfig = {
@@ -74,6 +75,11 @@ const configs = [
           ? defaultTsConfig
           : { ...defaultTsConfig, declarationDir: 'dist/ts', declaration: true, declarationMap: true }
       ),
+      replace({
+        values: {
+          'process.env.NODE_ENV': JSON.stringify(minfied ? 'production' : 'development'),
+        },
+      }),
       babel({
         exclude: 'node_modules/**',
         extensions: ['.js', '.ts'],
diff --git a/src/index.ts b/src/index.ts
index ae30a454..3eb756b0 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -17,7 +17,7 @@ import {
   isQueryDefinition,
 } from './endpointDefinitions';
 import { assertCast } from './tsHelpers';
-import { capitalize, IS_DEV } from './utils';
+import { capitalize } from './utils';
 import { onFocus, onFocusLost, onOnline, onOffline } from './setupListeners';
 export { ApiProvider } from './ApiProvider';
 export { QueryStatus } from './apiState';
@@ -62,7 +62,7 @@ export function createApi<
   const endpointDefinitions: EndpointDefinitions = {};
 
   const assertEntityType: AssertEntityTypes = (entity) => {
-    if (IS_DEV()) {
+    if (typeof process !== 'undefined' && process.env.NODE_ENV === 'development') {
       if (!entityTypes.includes(entity.type as any)) {
         console.error(`Entity type '${entity.type}' was used, but not specified in \`entityTypes\`!`);
       }
@@ -163,7 +163,7 @@ export function createApi<
       mutation: (x) => ({ ...x, type: DefinitionType.mutation } as any),
     });
     for (const [endpoint, definition] of Object.entries(evaluatedEndpoints)) {
-      if (IS_DEV()) {
+      if (typeof process !== 'undefined' && process.env.NODE_ENV === 'development') {
         if (!inject.overrideExisting && endpoint in endpointDefinitions) {
           console.error(
             `called \`injectEndpoints\` to override already-existing endpoint ${endpoint} without specifying \`overrideExisting: true\``
diff --git a/src/utils/index.ts b/src/utils/index.ts
index f919c39e..2580c354 100644
--- a/src/utils/index.ts
+++ b/src/utils/index.ts
@@ -5,6 +5,5 @@ export * from './flatten';
 export * from './shallowEqual';
 export * from './useShallowStableValue';
 export * from './capitalize';
-export * from './isDev';
 export * from './isOnline';
 export * from './isDocumentVisible';
diff --git a/src/utils/isDev.ts b/src/utils/isDev.ts
deleted file mode 100644
index 16e49bb8..00000000
--- a/src/utils/isDev.ts
+++ /dev/null
@@ -1 +0,0 @@
-export const IS_DEV = () => typeof process !== 'undefined' && process.env.NODE_ENV === 'development';
diff --git a/yarn.lock b/yarn.lock
index 06da2e54..30723546 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1222,7 +1222,7 @@
     is-module "^1.0.0"
     resolve "^1.17.0"
 
-"@rollup/plugin-replace@^2.2.1":
+"@rollup/plugin-replace@^2.2.1", "@rollup/plugin-replace@^2.3.4":
   version "2.3.4"
   resolved "https://registry.yarnpkg.com/@rollup/plugin-replace/-/plugin-replace-2.3.4.tgz#7dd84c17755d62b509577f2db37eb524d7ca88ca"
   integrity sha512-waBhMzyAtjCL1GwZes2jaE9MjuQ/DQF2BatH3fRivUF3z0JBFrU0U6iBNC/4WR+2rLKhaAhPWDNPYp4mI6RqdQ==