diff --git a/source/modules/jsusfx/source/jsusfx.h b/source/modules/jsusfx/source/jsusfx.h
index a8c7805c4..50bf37521 100644
--- a/source/modules/jsusfx/source/jsusfx.h
+++ b/source/modules/jsusfx/source/jsusfx.h
@@ -25,7 +25,7 @@
 #include "WDL/eel2/ns-eel.h"
 #include "WDL/eel2/ns-eel-int.h"
 
-#ifndef nullptr
+#if __cplusplus < 201103L && !defined(nullptr)
 	#define nullptr NULL
 #endif