diff --git a/src/occt/include/point.hpp b/src/occt/include/point.hpp
index 76daf23..f88d9e2 100644
--- a/src/occt/include/point.hpp
+++ b/src/occt/include/point.hpp
@@ -2,7 +2,5 @@
 
 #include <gp_Pnt.hxx>
 
-extern "C" {
-    TopoDS_Shape make_point(double x, double y, double z);
-    void coord_point(const TopoDS_Shape& shape, double* x, double* y, double* z);
-}
+TopoDS_Shape make_point(double x, double y, double z);
+void coord_point(const TopoDS_Shape& shape, double* x, double* y, double* z);