diff --git a/lib/libwebsockets.h b/lib/libwebsockets.h
index ca382ce4..fa92f465 100644
--- a/lib/libwebsockets.h
+++ b/lib/libwebsockets.h
@@ -39,6 +39,7 @@ extern "C" {
 #include <winsock2.h>
 #include <ws2tcpip.h>
 #include <stddef.h>
+#include <stdint.h>
 #include <basetsd.h>
 
 #define strcasecmp stricmp