diff --git a/lib/httpx/transcoder/utils/deflater.rb b/lib/httpx/transcoder/utils/deflater.rb
index 1e6d360b..44b892ca 100644
--- a/lib/httpx/transcoder/utils/deflater.rb
+++ b/lib/httpx/transcoder/utils/deflater.rb
@@ -48,6 +48,12 @@ def close
         @closed = true
       end
 
+      def rewind
+        return unless @buffer
+
+        @buffer.rewind
+      end
+
       private
 
       # rubocop:disable Naming/MemoizedInstanceVariableName