diff --git a/nix/nix-daemon/nix-daemon.cc b/nix/nix-daemon/nix-daemon.cc
index 463aba18bd..ecff25d788 100644
--- a/nix/nix-daemon/nix-daemon.cc
+++ b/nix/nix-daemon/nix-daemon.cc
@@ -743,6 +743,8 @@ static void processConnection(bool trusted)
         assert(!canSendStderr);
     };
 
+    canSendStderr = false;
+    _isInterrupted = false;
     printMsg(lvlDebug, format("%1% operations") % opCount);
 }