diff --git a/usr.bin/sed/main.c b/usr.bin/sed/main.c
--- a/usr.bin/sed/main.c
+++ b/usr.bin/sed/main.c
@@ -198,7 +198,7 @@
 usage(void)
 {
 	(void)fprintf(stderr,
-	    "usage: %s script [-Ealnru] [-i extension] [file ...]\n"
+	    "usage: %s [-Ealnru] [-i extension] command [file ...]\n"
 	    "\t%s [-Ealnu] [-i extension] [-e script] ... [-f script_file]"
 	    " ... [file ...]\n", getprogname(), getprogname());
 	exit(1);
diff --git a/usr.bin/sed/sed.1 b/usr.bin/sed/sed.1
--- a/usr.bin/sed/sed.1
+++ b/usr.bin/sed/sed.1
@@ -31,7 +31,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd June 14, 2025
+.Dd September 11, 2025
 .Dt SED 1
 .Os
 .Sh NAME
@@ -40,9 +40,9 @@
 .Sh SYNOPSIS
 .Nm
 .Op Fl Ealnru
-.Ar command
 .Op Fl I Ar extension
 .Op Fl i Ar extension
+.Ar command
 .Op Ar
 .Nm
 .Op Fl Ealnru
@@ -58,13 +58,16 @@
 are specified, modifying the input as specified by a list of commands.
 The input is then written to the standard output.
 .Pp
-A single command may be specified as the first argument to
+A single command may be specified as the first non-option argument to
 .Nm .
 Multiple commands may be specified by using the
 .Fl e
 or
 .Fl f
-options.
+options, either of which will cause
+.Nm
+to instead intrepret the first non-option argument as a
+.Ar file .
 All commands are applied to the input in the order they are specified
 regardless of their origin.
 .Pp