diff --git a/src/nix-daemon/nix-daemon.cc b/src/nix-daemon/nix-daemon.cc
index ae6e560c3..12efd46f1 100644
--- a/src/nix-daemon/nix-daemon.cc
+++ b/src/nix-daemon/nix-daemon.cc
@@ -610,6 +610,8 @@ static void processConnection(bool trusted)
         assert(!canSendStderr);
     };
 
+    canSendStderr = false;
+    _isInterrupted = false;
     printMsg(lvlDebug, format("%1% operations") % opCount);
 }