diff --git a/src/main/java/cn/lihongjie/coal/config/RResponseBodyAdvice.java b/src/main/java/cn/lihongjie/coal/config/RResponseBodyAdvice.java
index 50c18750..a11d0960 100644
--- a/src/main/java/cn/lihongjie/coal/config/RResponseBodyAdvice.java
+++ b/src/main/java/cn/lihongjie/coal/config/RResponseBodyAdvice.java
@@ -7,7 +7,6 @@ import org.springframework.http.MediaType;
 import org.springframework.http.converter.HttpMessageConverter;
 import org.springframework.http.server.ServerHttpRequest;
 import org.springframework.http.server.ServerHttpResponse;
-import org.springframework.web.bind.annotation.ControllerAdvice;
 import org.springframework.web.bind.annotation.RestControllerAdvice;
 import org.springframework.web.servlet.mvc.method.annotation.ResponseBodyAdvice;
 
@@ -30,7 +29,9 @@ public class RResponseBodyAdvice implements ResponseBodyAdvice<Object> {
         if (!selectedContentType.includes(MediaType.APPLICATION_JSON)) {
             return body;
         }
-
+        if (body instanceof byte[]) {
+            return body;
+        }
 
         if (body instanceof R<?>) {
             return body;