diff --git a/src/rx.cpp b/src/rx.cpp
index f7dc13e3c..a68e5438a 100644
--- a/src/rx.cpp
+++ b/src/rx.cpp
@@ -25,7 +25,8 @@
 //
 ////////////////////////////////////////////////////////////////////////////////
 
-#include "regex.h"
+#include <stdlib.h>
+#include <regex.h>
 #include "rx.h"
 
 //#define _POSIX_C_SOURCE 1