diff --git a/apps/portal/src/components/widgets/chainflip-swap/swap-modules/simpleswap-swap-module.ts b/apps/portal/src/components/widgets/chainflip-swap/swap-modules/simpleswap-swap-module.ts
index 2ba421e3d..f9d384b9c 100644
--- a/apps/portal/src/components/widgets/chainflip-swap/swap-modules/simpleswap-swap-module.ts
+++ b/apps/portal/src/components/widgets/chainflip-swap/swap-modules/simpleswap-swap-module.ts
@@ -23,7 +23,8 @@ import { atomFamily } from 'jotai/utils'
 import { createPublicClient, encodeFunctionData, erc20Abi, http, isAddress } from 'viem'
 import { mainnet, bsc, arbitrum, optimism, blast, polygon } from 'viem/chains'
 
-const APIKEY = import.meta.env.REACT_APP_SIMPLESWAP_API_KEY
+const APIKEY = import.meta.env.SIMPLESWAP_API_KEY
+if (!APIKEY && import.meta.env.DEV) throw new Error('env var REACT_APP_CHAINDATA not set')
 const PROTOCOL = 'simpleswap'
 
 type SimpleSwapCurrency = {
diff --git a/apps/portal/src/vite-env.d.ts b/apps/portal/src/vite-env.d.ts
index 345883f35..3ef598603 100644
--- a/apps/portal/src/vite-env.d.ts
+++ b/apps/portal/src/vite-env.d.ts
@@ -19,7 +19,7 @@ interface ImportMetaEnv {
   REACT_APP_BASEROW_CROWDLOANS_AUTH: string
   REACT_APP_LIDO_REWARDS_ADDRESS: string
   REACT_APP_QUEST_API?: string
-  REACT_APP_SIMPLESWAP_API_KEY: string
+  SIMPLESWAP_API_KEY: string
 }
 
 declare namespace JSX {