diff --git a/src/envConfig.ts b/src/envConfig.ts
index 5aee164ff03..2c7072815f4 100644
--- a/src/envConfig.ts
+++ b/src/envConfig.ts
@@ -261,7 +261,8 @@ export const asEnvConfig = asObject({
   SEPOLIA_INIT: asCorePluginInit(asEvmApiKeys),
   SIDESHIFT_INIT: asCorePluginInit(
     asObject({
-      affiliateId: asOptional(asString, '')
+      affiliateId: asOptional(asString, ''),
+      privateKey: asOptional(asString)
     }).withRest
   ),
   SOLANA_INIT: asCorePluginInit(