diff --git a/README b/README
index fddc9ac..95afd82 100644
--- a/README
+++ b/README
@@ -60,7 +60,7 @@ The following tools are implemented ('*' == finished, '#' == UTF-8 support,
 =*  rmdir           yes                          none
 #   sed
     seq             non-posix                    none
-=*  setsid          non-posix                    none
+=*| setsid          non-posix                    none
 =*| sha1sum         non-posix                    none
 =*| sha256sum       non-posix                    none
 =*| sha512sum       non-posix                    none
diff --git a/setsid.c b/setsid.c
index e97d1a2..b666e33 100644
--- a/setsid.c
+++ b/setsid.c
@@ -20,7 +20,7 @@ main(int argc, char *argv[])
 		usage();
 	} ARGEND;
 
-	if (argc < 1)
+	if (!argc)
 		usage();
 
 	if (getpgrp() == getpid()) {
@@ -38,5 +38,6 @@ main(int argc, char *argv[])
 	execvp(argv[0], argv);
 	savederrno = errno;
 	weprintf("execvp %s:", argv[0]);
+
 	return (savederrno == ENOENT) ? 127 : 126;
 }