diff --git a/seaweed-volume/src/server/handlers.rs b/seaweed-volume/src/server/handlers.rs
index da97099f9..1308c47ea 100644
--- a/seaweed-volume/src/server/handlers.rs
+++ b/seaweed-volume/src/server/handlers.rs
@@ -1006,9 +1006,7 @@ async fn get_or_head_handler_inner(
                             resp.headers_mut()
                                 .insert(header::LAST_MODIFIED, lm.parse().unwrap());
                         }
-                        // Go sets ETag before conditional checks, so 304 includes it
-                        resp.headers_mut()
-                            .insert(header::ETAG, etag.parse().unwrap());
+                        // Go sets ETag AFTER the 304 return paths (L235), so 304 does NOT include ETag
                         return resp;
                     }
                 }
@@ -1025,9 +1023,7 @@ async fn get_or_head_handler_inner(
                     resp.headers_mut()
                         .insert(header::LAST_MODIFIED, lm.parse().unwrap());
                 }
-                // Go sets ETag before conditional checks, so 304 includes it
-                resp.headers_mut()
-                    .insert(header::ETAG, etag.parse().unwrap());
+                // Go sets ETag AFTER the 304 return paths (L235), so 304 does NOT include ETag
                 return resp;
             }
         }