diff --git a/lib/replace/README b/lib/replace/README
index 9dd4f7305f3..6612eabd22a 100644
--- a/lib/replace/README
+++ b/lib/replace/README
@@ -73,6 +73,7 @@ symlink
 realpath
 poll
 setproctitle
+memset_s
 
 Types:
 bool
diff --git a/lib/replace/wscript b/lib/replace/wscript
index 173d7e6d29a..6cbae932b20 100644
--- a/lib/replace/wscript
+++ b/lib/replace/wscript
@@ -791,7 +791,7 @@ REPLACEMENT_FUNCTIONS = {
                   'utime', 'utimes', 'dup2', 'chown', 'link', 'readlink',
                   'symlink', 'lchown', 'realpath', 'memmem', 'vdprintf',
                   'dprintf', 'get_current_dir_name',
-                  'strerror_r', 'clock_gettime'],
+                  'strerror_r', 'clock_gettime', 'memset_s'],
     'timegm.c': ['timegm'],
     # Note: C99_VSNPRINTF is not a function, but a special condition
     # for replacement