diff --git a/server/src/main/java/io/druid/server/QueryResource.java b/server/src/main/java/io/druid/server/QueryResource.java
index be09886f4a9..9a6eca65ef2 100644
--- a/server/src/main/java/io/druid/server/QueryResource.java
+++ b/server/src/main/java/io/druid/server/QueryResource.java
@@ -209,8 +209,8 @@ public class QueryResource
                     outputStream.close();
                   }
                 },
-                isSmile ? APPLICATION_JSON : APPLICATION_SMILE
-            )
+                isSmile ? APPLICATION_SMILE : APPLICATION_JSON
+        )
             .header("X-Druid-Query-Id", queryId)
             .header("X-Druid-Response-Context", jsonMapper.writeValueAsString(responseContext))
             .build();