diff --git a/mps/code/mpsioan.c b/mps/code/mpsioan.c
index 5ffd9dad723..dd0345c51e9 100644
--- a/mps/code/mpsioan.c
+++ b/mps/code/mpsioan.c
@@ -35,6 +35,7 @@ extern int _flsbuf(unsigned char c, FILE *stream);
 
 static FILE *ioFile = NULL;
 
+#pragma warning( disable : 4996 )
 
 mps_res_t mps_io_create(mps_io_t *mps_io_r)
 {