diff --git a/app/services/oauth2.js b/app/services/oauth2.js
index cc4e1a6..a1cf6e2 100644
--- a/app/services/oauth2.js
+++ b/app/services/oauth2.js
@@ -227,7 +227,10 @@ class OAuth2Service extends SiteService {
       }
 
       const response = await this.issueTokens(ac);
-      this.log.info('OAuth2 grant exchanged for token', { clientID: client._id });
+      this.log.info('OAuth2 grant exchanged for token', {
+        clientID: client._id,
+        params: response.params,
+      });
       return done(null, response.accessToken, response.refreshToken, response.params);
     } catch (error) {
       this.log.error('failed to process OAuth2 exchange', { error });