1 files changed, 1 insertions, 1 deletions
diff --git a/nix/libutil/util.hh b/nix/libutil/util.hh
index cf513c008e..7e538ea033 100644
--- a/nix/libutil/util.hh
+++ b/nix/libutil/util.hh
@@ -253,7 +253,7 @@ public:
     ~Pid();
     void operator =(pid_t pid);
     operator pid_t();
-    void kill();
+    void kill(bool quiet = false);
     int wait(bool block);
     void setSeparatePG(bool separatePG);
     void setKillSignal(int signal);