diff --git a/src/nxt_main_process.c b/src/nxt_main_process.c
--- a/src/nxt_main_process.c
+++ b/src/nxt_main_process.c
@@ -972,9 +972,11 @@ nxt_main_process_sigchld_handler(nxt_tas
 
                 if (rt->nprocesses <= 1) {
                     nxt_runtime_quit(task, 0);
+
+                    return;
                 }
 
-                return;
+                continue;
             }
 
             nxt_port_remove_notify_others(task, process);