1 files changed, 1 insertions, 1 deletions
diff --git a/windows.c b/windows.c
index 0a43c5d..8e5b406 100644
--- a/windows.c
+++ b/windows.c
@@ -1551,7 +1551,7 @@ static frontend *frontend_new(HINSTANCE inst)
     return fe;
 }
 
-static void savefile_write(void *wctx, void *buf, int len)
+static void savefile_write(void *wctx, const void *buf, int len)
 {
     FILE *fp = (FILE *)wctx;
     fwrite(buf, 1, len, fp);