diff --git a/src/haproxy.c b/src/haproxy.c
index bb9f0cf9f..4ad370d65 100644
--- a/src/haproxy.c
+++ b/src/haproxy.c
@@ -1898,7 +1898,7 @@ int main(int argc, char **argv)
 				/* it's OK because "-Ds -f x" is the shortest form going here */
 				memcpy(argv[0] + strlen(argv[0]), "-master", 8);
 				for (proc = 0; proc < global.nbproc; proc++)
-					while (waitpid(children[proc], NULL, 0) == -1 && errno == EINTR);
+					while (waitpid(-1, NULL, 0) == -1 && errno == EINTR);
 			}
 			exit(0); /* parent must leave */
 		}