diff --git a/src/io.c b/src/io.c
index e66e1e355..5fefbe051 100644
--- a/src/io.c
+++ b/src/io.c
@@ -148,7 +148,7 @@ int EmbedReceive(CYASSL *ssl, char *buf, int sz, void *ctx)
         #else
             struct timeval timeout = {ssl->dtls_timeout, 0};
         #endif
-        setsockopt(sd, SOL_SOCKET, SO_RCVTIMEO, &timeout, sizeof(timeout));
+        setsockopt(sd, SOL_SOCKET,SO_RCVTIMEO, (char*)&timeout,sizeof(timeout));
     }
 #endif