diff --git a/include/vde/curves/nurbs_surface.h b/include/vde/curves/nurbs_surface.h
index 1b1cc22..1757126 100644
--- a/include/vde/curves/nurbs_surface.h
+++ b/include/vde/curves/nurbs_surface.h
@@ -1,6 +1,7 @@
 #pragma once
 #include "vde/core/point.h"
 #include "vde/curves/bspline_curve.h"
+#include "vde/curves/nurbs_curve.h"
 #include <vector>
 #include <array>