diff --git a/src/XrdTpc/XrdTpcStream.hh b/src/XrdTpc/XrdTpcStream.hh
index 9c61d7b1301..ba03af99a5b 100644
--- a/src/XrdTpc/XrdTpcStream.hh
+++ b/src/XrdTpc/XrdTpcStream.hh
@@ -98,6 +98,7 @@ private:
             }
             m_offset = -1;
             m_size = 0;
+            m_buffer.clear();
             return retval;
         }