diff --git a/src/libstore/filetransfer.cc b/src/libstore/filetransfer.cc
index 76da8e415..fd341b2f0 100644
--- a/src/libstore/filetransfer.cc
+++ b/src/libstore/filetransfer.cc
@@ -196,7 +196,6 @@ struct curlFileTransfer : public FileTransfer
                             result.immutableUrl = match.str(1);
                         else
                             debug("got invalid link header '%s'", value);
-                        warn("foo %s", value);
                     }
                 }
             }