diff --git a/Utils/DaemonTools.hh b/Utils/DaemonTools.hh
index 5fb5c2a1470bb4e9fa4f16dc2ac338898e3cfa67..46d510afda4dcd85007eb9d55d31b88ca7d254ad 100644
--- a/Utils/DaemonTools.hh
+++ b/Utils/DaemonTools.hh
@@ -190,6 +190,7 @@ namespace senf {
                                              implementation is not overridden. */
     private:
 
+        void fork();
         void pidfileCreate();
 
         int argc_;