diff --git a/lib/libsys/mmap.2 b/lib/libsys/mmap.2
--- a/lib/libsys/mmap.2
+++ b/lib/libsys/mmap.2
@@ -491,12 +491,6 @@
 .Fa offset
 argument was not 0.
 .It Bq Er EINVAL
-Both
-.Dv MAP_FIXED
-and
-.Dv MAP_EXCL
-were specified, but the requested region is already used by a mapping.
-.It Bq Er EINVAL
 .Dv MAP_EXCL
 was specified, but
 .Dv MAP_FIXED
@@ -532,6 +526,12 @@
 argument was not available.
 .Dv MAP_ANON
 was specified and insufficient memory was available.
+.It Bq Er ENOMEM
+Both
+.Dv MAP_FIXED
+and
+.Dv MAP_EXCL
+were specified, but the requested region is already used by a mapping.
 .It Bq Er ENOTSUP
 The
 .Fa prot