diff --git a/kolabd/__init__.py.orig b/kolabd/__init__.py
--- a/kolabd/__init__.py.orig
+++ b/kolabd/__init__.py
@@ -202,6 +202,10 @@
                 os.close(1)
                 os.close(2)
 
+                os.open(os.devnull, os.O_RDONLY)
+                os.open(os.devnull, os.O_WRONLY)
+                os.open(os.devnull, os.O_WRONLY)
+
                 log.remove_stdout_handler()
                 self.set_signal_handlers()
                 self.write_pid()
diff --git a/wallace/__init__.py.orig b/wallace/__init__.py
--- a/wallace/__init__.py.orig
+++ b/wallace/__init__.py
@@ -453,6 +453,10 @@
                 os.close(1)
                 os.close(2)
 
+                os.open(os.devnull, os.O_RDONLY)
+                os.open(os.devnull, os.O_WRONLY)
+                os.open(os.devnull, os.O_WRONLY)
+
                 log.remove_stdout_handler()
                 self.set_signal_handlers()
                 self.write_pid()