Update the signature of PyFile_WriteString().
diff --git a/Doc/api/concrete.tex b/Doc/api/concrete.tex
index 5afe6b8..6c6e6f5 100644
--- a/Doc/api/concrete.tex
+++ b/Doc/api/concrete.tex
@@ -1932,7 +1932,7 @@
failure; the appropriate exception will be set.
\end{cfuncdesc}
-\begin{cfuncdesc}{int}{PyFile_WriteString}{char *s, PyFileObject *p}
+\begin{cfuncdesc}{int}{PyFile_WriteString}{const char *s, PyFileObject *p}
Writes string \var{s} to file object \var{p}. Returns \code{0} on
success or \code{-1} on failure; the appropriate exception will be
set.
diff --git a/Doc/api/refcounts.dat b/Doc/api/refcounts.dat
index d10e909..463eaf4 100644
--- a/Doc/api/refcounts.dat
+++ b/Doc/api/refcounts.dat
@@ -314,7 +314,7 @@
PyFile_WriteObject:int:flags::
PyFile_WriteString:int:::
-PyFile_WriteString:char*:s::
+PyFile_WriteString:const char*:s::
PyFile_WriteString:PyFileObject*:p:0:
PyFile_WriteString:int:flags::