diff --git a/apps/backend/src/oauth/providers/base.tsx b/apps/backend/src/oauth/providers/base.tsx
index 432519149..64ee285a2 100644
--- a/apps/backend/src/oauth/providers/base.tsx
+++ b/apps/backend/src/oauth/providers/base.tsx
@@ -139,6 +139,7 @@ export abstract class OAuthBaseProvider {
         code_verifier: this.noPKCE ? undefined : options.codeVerifier,
         state: options.state,
       },
+      { exchangeBody: this.authorizationExtraParams }
     ] as const;
 
     try {