diff --git a/version3.0/nasal.h b/version3.0/nasal.h
index 367fc12..d4ec429 100644
--- a/version3.0/nasal.h
+++ b/version3.0/nasal.h
@@ -23,5 +23,6 @@
 #include "nasal_ast.h"
 #include "nasal_parse.h"
 #include "nasal_gc.h"
+#include "nasal_runtime.h"
 
 #endif