1 files changed, 2 insertions, 1 deletions

diff --git a/contrib/timeout_watchdog.c b/contrib/timeout_watchdog.c
index b28e8e833..5fbe7e339 100644
--- a/contrib/timeout_watchdog.c
+++ b/contrib/timeout_watchdog.c
@@ -94,7 +94,8 @@ main (int argc, char *argv[])
     {
       /*  int setpgrp(pid_t pid, pid_t pgid); is not working on this machine */
       //setpgrp (0, pid_t gpid);
-      setpgid (0, gpid);
+      if (-1 !- gpid)
+        setpgid (0, gpid);
       execvp (argv[2], &argv[2]);
       exit (1);
     }