diff --git a/lib/libc/sys/mmap.2 b/lib/libc/sys/mmap.2
index f4cb27e81198..df5eb0f9dce3 100644
--- a/lib/libc/sys/mmap.2
+++ b/lib/libc/sys/mmap.2
@@ -128,10 +128,6 @@ Use of this option is discouraged.
 .It Dv MAP_HASSEMAPHORE
 Notify the kernel that the region may contain semaphores and that special
 handling may be necessary.
-.It Dv MAP_INHERIT
-Permit regions to be inherited across
-.Xr execve 2
-system calls.
 .It Dv MAP_NOCORE
 Region is not included in a core file.
 .It Dv MAP_NOSYNC