diff --git a/Makefile b/Makefile
index 6d74b21..c41e57e 100644
--- a/Makefile
+++ b/Makefile
@@ -11,7 +11,7 @@ all: slock
 .c.o:
 	${CC} -c ${CFLAGS} $<
 
-${OBJ}: config.h config.mk arg.h util.h
+${OBJ}: config.h config.mk util.h
 
 config.h:
 	cp config.def.h $@
@@ -25,7 +25,7 @@ clean:
 dist: clean
 	mkdir -p slock-${VERSION}
 	cp -R LICENSE Makefile README slock.1 config.mk \
-		${SRC} config.def.h arg.h util.h slock-${VERSION}
+		${SRC} config.def.h util.h slock-${VERSION}
 	tar -cf slock-${VERSION}.tar slock-${VERSION}
 	gzip slock-${VERSION}.tar
 	rm -rf slock-${VERSION}
diff --git a/arg.h b/arg.h
deleted file mode 100644
index 0b23c53..0000000
--- a/arg.h
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * Copy me if you can.
- * by 20h
- */
-
-#ifndef ARG_H__
-#define ARG_H__
-
-extern char *argv0;
-
-/* use main(int argc, char *argv[]) */
-#define ARGBEGIN	for (argv0 = *argv, argv++, argc--;\
-					argv[0] && argv[0][0] == '-'\
-					&& argv[0][1];\
-					argc--, argv++) {\
-				char argc_;\
-				char **argv_;\
-				int brk_;\
-				if (argv[0][1] == '-' && argv[0][2] == '\0') {\
-					argv++;\
-					argc--;\
-					break;\
-				}\
-				for (brk_ = 0, argv[0]++, argv_ = argv;\
-						argv[0][0] && !brk_;\
-						argv[0]++) {\
-					if (argv_ != argv)\
-						break;\
-					argc_ = argv[0][0];\
-					switch (argc_)
-
-/* Handles obsolete -NUM syntax */
-#define ARGNUM				case '0':\
-					case '1':\
-					case '2':\
-					case '3':\
-					case '4':\
-					case '5':\
-					case '6':\
-					case '7':\
-					case '8':\
-					case '9'
-
-#define ARGEND			}\
-			}
-
-#define ARGC()		argc_
-
-#define ARGNUMF()	(brk_ = 1, estrtonum(argv[0], 0, INT_MAX))
-
-#define EARGF(x)	((argv[0][1] == '\0' && argv[1] == NULL)?\
-				((x), abort(), (char *)0) :\
-				(brk_ = 1, (argv[0][1] != '\0')?\
-					(&argv[0][1]) :\
-					(argc--, argv++, argv[0])))
-
-#define ARGF()		((argv[0][1] == '\0' && argv[1] == NULL)?\
-				(char *)0 :\
-				(brk_ = 1, (argv[0][1] != '\0')?\
-					(&argv[0][1]) :\
-					(argc--, argv++, argv[0])))
-
-#define LNGARG()	&argv[0][0]
-
-#endif
diff --git a/slock.1 b/slock.1
index 40c15e1..e485992 100644
--- a/slock.1
+++ b/slock.1
@@ -1,4 +1,4 @@
-.Dd October 6, 2023
+.Dd September 5, 2026
 .Dt SLOCK 1
 .Os
 .Sh NAME
@@ -7,14 +7,9 @@
 .Sh SYNOPSIS
 .Nm
 .Op Fl v
-.Op Ar cmd Op Ar arg ...
 .Sh DESCRIPTION
 .Nm
 is a simple X screen locker.
-If provided,
-.Ar cmd
-is executed after the screen has been locked.
-.Pp
 The options are as follows:
 .Bl -tag -width Ds
 .It Fl v
@@ -22,10 +17,6 @@ Print version information to stdout and exit.
 .El
 .Sh EXIT STATUS
 .Ex -std
-.Sh EXAMPLES
-$
-.Nm
-/usr/sbin/s2ram
 .Sh SECURITY CONSIDERATIONS
 To make sure a locked screen can not be bypassed by switching VTs
 or killing the X server with Ctrl+Alt+Backspace, it is recommended
diff --git a/slock.c b/slock.c
index 3cede0f..9c587e1 100644
--- a/slock.c
+++ b/slock.c
@@ -13,14 +13,12 @@
 #include <stdio.h>
 #include <string.h>
 #include <unistd.h>
-#include <spawn.h>
 #include <sys/types.h>
 #include <X11/extensions/Xrandr.h>
 #include <X11/keysym.h>
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
 
-#include "arg.h"
 #include "util.h"
 
 char *argv0;
@@ -304,7 +302,7 @@ lockscreen(Display *dpy, struct xrandr *rr, int screen)
 static void
 usage(void)
 {
-	die("usage: slock [-v] [cmd [arg ...]]\n");
+	die("usage: slock [-v]\n");
 }
 
 int
@@ -319,13 +317,12 @@ main(int argc, char **argv) {
 	Display *dpy;
 	int s, nlocks, nscreens;
 
-	ARGBEGIN {
-	case 'v':
+	if (argc > 1 && !strcmp(argv[1], "-v")) {
 		puts("slock-"VERSION);
 		return 0;
-	default:
+	} else if (argc > 1) {
 		usage();
-	} ARGEND
+	}
 
 	/* validate drop-user and -group */
 	errno = 0;
@@ -378,17 +375,6 @@ main(int argc, char **argv) {
 	if (nlocks != nscreens)
 		return 1;
 
-	/* run post-lock command */
-	if (argc > 0) {
-		pid_t pid;
-		extern char **environ;
-		int err = posix_spawnp(&pid, argv[0], NULL, NULL, argv, environ);
-		if (err) {
-			die("slock: failed to execute post-lock command: %s: %s\n",
-			    argv[0], strerror(err));
-		}
-	}
-
 	/* everything is now blank. Wait for the correct password */
 	readpw(dpy, &rr, locks, nscreens, hash);