diff --git a/packages/server/src/utils/SSEStreamer.ts b/packages/server/src/utils/SSEStreamer.ts
index 5fa5ca4d..a5327bad 100644
--- a/packages/server/src/utils/SSEStreamer.ts
+++ b/packages/server/src/utils/SSEStreamer.ts
@@ -194,7 +194,12 @@ export class SSEStreamer implements IServerSideEventStreamer {
             metadataJson['memoryType'] = apiResponse.memoryType
         }
         if (apiResponse.followUpPrompts) {
-            metadataJson['followUpPrompts'] = JSON.parse(apiResponse.followUpPrompts)
+            metadataJson['followUpPrompts'] =
+                typeof apiResponse.followUpPrompts === 'string' ? JSON.parse(apiResponse.followUpPrompts) : apiResponse.followUpPrompts
+        }
+        if (apiResponse.flowVariables) {
+            metadataJson['flowVariables'] =
+                typeof apiResponse.flowVariables === 'string' ? JSON.parse(apiResponse.flowVariables) : apiResponse.flowVariables
         }
         if (Object.keys(metadataJson).length > 0) {
             this.streamCustomEvent(chatId, 'metadata', metadataJson)