diff --git a/config.json b/config.json
index 8b47b3d92..0b51bba98 100644
--- a/config.json
+++ b/config.json
@@ -4,7 +4,7 @@
 "kafkaBrokers": "kafka:9092",
 "kafkaTopic": "topic",
 "kafkaSaslUser": "user",
-"kafkaSaslPwd": "password"
+"kafkaSaslPwd": "password",
 "httpSinkUrl": "http://localhost:8080",
 "httpSinkBufferSize": 1500,
 "httpSinkDiscardMessages": true,