diff --git a/src/c/package.d b/src/c/package.d
index 27f0c01b9..ca0c8dcef 100644
--- a/src/c/package.d
+++ b/src/c/package.d
@@ -17,6 +17,7 @@
 
 #include <ecl/ecl.h>
 #include <ecl/internal.h>
+#include <ecl/ecl-inl.h>
 
 /******************************* ------- ******************************/
 /*