diff --git a/src/websockets.c b/src/websockets.c
index 95f8a81..cf2b5e7 100644
--- a/src/websockets.c
+++ b/src/websockets.c
@@ -72,7 +72,7 @@ struct libws_http_data {
 	FILE *fptr;
 };
 
-#ifndef HTTP_STATUS_NOT_FOUND
+#ifndef LWS_FEATURE_SERVE_HTTP_FILE_HAS_OTHER_HEADERS_ARG
 	/* This is libwebsockets 1.2.x or earlier, we have to degrade our capabilities.
 	 * Once lws 1.3 is widely available this should be removed. */
 #	define LWS_IS_OLD