diff --git a/src/response.rs b/src/response.rs
index 696bb7b..a4732d0 100644
--- a/src/response.rs
+++ b/src/response.rs
@@ -30,7 +30,7 @@ impl Response {
         self.message.parse().map_err(|e| LibError::InvalidMime(e))
     }
 
-    pub fn body(self: &Self) -> &BodyStream {
-        &self.body
+    pub fn body(self: &mut Self) -> &mut BodyStream {
+        &mut self.body
     }
 }