2 files changed, 13 insertions, 3 deletions
diff --git a/man/man3/wcrtomb.3 b/man/man3/wcrtomb.3
index 967a1a0f66..162d97df88 100644
--- a/man/man3/wcrtomb.3
+++ b/man/man3/wcrtomb.3
@@ -94,6 +94,14 @@ is NULL, a static anonymous
 state known only to the
 .BR wcrtomb ()
 function is used instead.
+.P
+At most
+.B MB_CUR_MAX
+bytes will be written at
+.IR s .
+The programmer must ensure that there is enough room to store the
+multibyte sequence at
+.IR s .
 .SH RETURN VALUE
 The
 .BR wcrtomb ()
diff --git a/man/man3/wctomb.3 b/man/man3/wctomb.3
index fce54cb4b4..643e2e6778 100644
--- a/man/man3/wctomb.3
+++ b/man/man3/wctomb.3
@@ -42,10 +42,12 @@ that is, the number of
 bytes written at
 .IR s .
 .P
-The programmer must ensure that there is
-room for at least
+At most
 .B MB_CUR_MAX
-bytes at
+bytes will be written at
+.IR s .
+The programmer must ensure that there is enough room to store the
+multibyte sequence at
 .IR s .
 .P
 If