diff --git a/lib/libwebsockets.c b/lib/libwebsockets.c
index a911cb74..ca534a50 100755
--- a/lib/libwebsockets.c
+++ b/lib/libwebsockets.c
@@ -1557,7 +1557,7 @@ lws_extension_callback_pm_deflate(struct lws_context *context,
 #endif
 
 LWS_EXTERN int
-lws_socket_bind(struct lws_vhost *vhost, int sockfd, int port,
+lws_socket_bind(struct lws_vhost *vhost, lws_sockfd_type sockfd, int port,
 		const char *iface)
 {
 #if LWS_POSIX
diff --git a/lib/private-libwebsockets.h b/lib/private-libwebsockets.h
index 9c737989..2338f9b0 100644
--- a/lib/private-libwebsockets.h
+++ b/lib/private-libwebsockets.h
@@ -1307,7 +1307,7 @@ struct lws {
 LWS_EXTERN int log_level;
 
 LWS_EXTERN int
-lws_socket_bind(struct lws_vhost *vhost, int sockfd, int port,
+lws_socket_bind(struct lws_vhost *vhost, lws_sockfd_type sockfd, int port,
 		const char *iface);
 
 LWS_EXTERN void