diff --git a/app/components/UI/Perps/controllers/PerpsController.test.ts b/app/components/UI/Perps/controllers/PerpsController.test.ts
index 3099ed941510..7121b437d29f 100644
--- a/app/components/UI/Perps/controllers/PerpsController.test.ts
+++ b/app/components/UI/Perps/controllers/PerpsController.test.ts
@@ -149,6 +149,7 @@ describe('PerpsController', () => {
       expect(controller.state.accountState).toBeNull();
       expect(controller.state.connectionStatus).toBe('disconnected');
       expect(controller.state.isEligible).toBe(false);
+      expect(controller.state.isTestnet).toBe(false); // Default to mainnet
     });
 
     it('should read current RemoteFeatureFlagController state during construction', () => {
diff --git a/app/components/UI/Perps/controllers/PerpsController.ts b/app/components/UI/Perps/controllers/PerpsController.ts
index 891a32df89d3..3595fac7ce7c 100644
--- a/app/components/UI/Perps/controllers/PerpsController.ts
+++ b/app/components/UI/Perps/controllers/PerpsController.ts
@@ -217,7 +217,7 @@ export type PerpsControllerState = {
  */
 export const getDefaultPerpsControllerState = (): PerpsControllerState => ({
   activeProvider: 'hyperliquid',
-  isTestnet: __DEV__, // Default to testnet in dev
+  isTestnet: false, // Default to mainnet
   connectionStatus: 'disconnected',
   accountState: null,
   positions: [],