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-rw-r--r--manual/stdio.texi5
1 files changed, 3 insertions, 2 deletions
diff --git a/manual/stdio.texi b/manual/stdio.texi
index 29de41a167..e4278b7a32 100644
--- a/manual/stdio.texi
+++ b/manual/stdio.texi
@@ -4852,8 +4852,9 @@ Got r
 @comment GNU
 @deftypefun {FILE *} open_memstream (char **@var{ptr}, size_t *@var{sizeloc})
 This function opens a stream for writing to a buffer.  The buffer is
-allocated dynamically (as with @code{malloc}; @pxref{Unconstrained
-Allocation}) and grown as necessary.
+allocated dynamically and grown as necessary, using @code{malloc}.
+After you've closed the stream, this buffer is your responsibility to
+clean up using @code{free} or @code{realloc}.  @xref{Unconstrained Allocation}.
 
 When the stream is closed with @code{fclose} or flushed with
 @code{fflush}, the locations @var{ptr} and @var{sizeloc} are updated to