diff --git a/vesuvius-c.h b/vesuvius-c.h
index 6d93925..d500ab6 100644
--- a/vesuvius-c.h
+++ b/vesuvius-c.h
@@ -950,6 +950,8 @@ void reset_mesh_origin_to_roi(TriangleMesh *mesh, const RegionOfInterest *roi) {
     }
 }
 
+#endif
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <ctype.h>