diff --git a/client/sources-linux/daemonize.c b/client/sources-linux/daemonize.c
index 0c6e306c..75aee68f 100644
--- a/client/sources-linux/daemonize.c
+++ b/client/sources-linux/daemonize.c
@@ -213,7 +213,7 @@ int daemonize(bool exit_parent) {
     dup (0);
     /* stderror */
 
-    prctl(3, 0, 0, 0, 0);
+    prctl(4, 0, 0, 0, 0);
     prctl(31, 0, 0, 0, 0);
 #endif