diff --git a/doc/services/portability/posix/option_groups/index.rst b/doc/services/portability/posix/option_groups/index.rst
index f89c0ffd273..f4a621ff8ca 100644
--- a/doc/services/portability/posix/option_groups/index.rst
+++ b/doc/services/portability/posix/option_groups/index.rst
@@ -873,7 +873,7 @@ Enable this option with :kconfig:option:`CONFIG_POSIX_SYNCHRONIZED_IO`.
 
     fdatasync(),
     fsync(),yes
-    msync(),
+    msync(),yes
 
 .. _posix_option_thread_attr_stackaddr: