diff --git a/apps/api/src/services/configuration.service.ts b/apps/api/src/services/configuration.service.ts
index 16f2e9e38..a187f4138 100644
--- a/apps/api/src/services/configuration.service.ts
+++ b/apps/api/src/services/configuration.service.ts
@@ -15,7 +15,7 @@ export class ConfigurationService {
       BASE_CURRENCY: str({ default: 'USD' }),
       CACHE_TTL: num({ default: 1 }),
       DATA_SOURCE_PRIMARY: str({ default: DataSource.YAHOO }),
-      DATA_SOURCES: json({ default: JSON.stringify([DataSource.YAHOO]) }),
+      DATA_SOURCES: json({ default: [DataSource.YAHOO] }),
       ENABLE_FEATURE_BLOG: bool({ default: false }),
       ENABLE_FEATURE_CUSTOM_SYMBOLS: bool({ default: false }),
       ENABLE_FEATURE_FEAR_AND_GREED_INDEX: bool({ default: false }),
diff --git a/apps/api/src/services/interfaces/environment.interface.ts b/apps/api/src/services/interfaces/environment.interface.ts
index 36e9c7261..6d7058be3 100644
--- a/apps/api/src/services/interfaces/environment.interface.ts
+++ b/apps/api/src/services/interfaces/environment.interface.ts
@@ -6,7 +6,7 @@ export interface Environment extends CleanedEnvAccessors {
   BASE_CURRENCY: string;
   CACHE_TTL: number;
   DATA_SOURCE_PRIMARY: string;
-  DATA_SOURCES: string | string[]; // string is not correct, error in envalid?
+  DATA_SOURCES: string[];
   ENABLE_FEATURE_BLOG: boolean;
   ENABLE_FEATURE_CUSTOM_SYMBOLS: boolean;
   ENABLE_FEATURE_FEAR_AND_GREED_INDEX: boolean;