diff --git a/crypto/rand/rand_win.c b/crypto/rand/rand_win.c
index 017ce2a9fce003b14f128e59e9a94b23a22599cd..cb8e17634f87f2ef163b4af049a80d4cbbfc9033 100644
--- a/crypto/rand/rand_win.c
+++ b/crypto/rand/rand_win.c
@@ -236,7 +236,7 @@ int RAND_poll(void)
 		if (cursor)
 			{
 			/* cursor position */
-			cursor(buf);
+			cursor((PCURSORINFO)buf);
 			RAND_add(buf, sizeof(buf), 0);
 			}