diff --git a/module-server/src/main/resources/application-prod.yaml b/module-server/src/main/resources/application-prod.yaml
index cf5bd00..9d93705 100644
--- a/module-server/src/main/resources/application-prod.yaml
+++ b/module-server/src/main/resources/application-prod.yaml
@@ -4,4 +4,4 @@ spring:
       - "configserver:${CONFIGSERVER_SCHEME:http}://${CONFIGSERVER_HOST:configserver}:${CONFIGSERVER_PORT:8888}${CONFIGSERVER_PREFIX:/config}"
   kafka:
     bootstrap-servers:
-      - ${KAFKA_HOST:kafka}:${KAFKA_PORT:9092}
+      - "${KAFKA_HOST:kafka}:${KAFKA_PORT:9092}"