diff --git a/src/haproxy.c b/src/haproxy.c
index 1ab87b726..69d42da74 100644
--- a/src/haproxy.c
+++ b/src/haproxy.c
@@ -493,6 +493,7 @@ static void mworker_block_signals()
 	sigaddset(&set, SIGHUP);
 	sigaddset(&set, SIGINT);
 	sigaddset(&set, SIGTERM);
+	sigaddset(&set, SIGCHLD);
 	ha_sigmask(SIG_SETMASK, &set, NULL);
 }
 
@@ -506,6 +507,7 @@ static void mworker_unblock_signals()
 	sigaddset(&set, SIGHUP);
 	sigaddset(&set, SIGINT);
 	sigaddset(&set, SIGTERM);
+	sigaddset(&set, SIGCHLD);
 	ha_sigmask(SIG_UNBLOCK, &set, NULL);
 }
 
diff --git a/src/signal.c b/src/signal.c
index 01b612179..6f74a6f46 100644
--- a/src/signal.c
+++ b/src/signal.c
@@ -118,6 +118,8 @@ int signal_init()
 	 * parsing We don't want the process to be killed by an unregistered
 	 * USR2 signal when the master-worker is reloading */
 	sigaddset(&blocked_sig, SIGUSR2);
+	sigaddset(&blocked_sig, SIGCHLD);
+
 	ha_sigmask(SIG_SETMASK, &blocked_sig, NULL);
 
 	sigfillset(&blocked_sig);