diff --git a/src/libnest2d/include/libnest2d/geometry_traits.hpp b/src/libnest2d/include/libnest2d/geometry_traits.hpp
index 0096ef610..134ec73a0 100644
--- a/src/libnest2d/include/libnest2d/geometry_traits.hpp
+++ b/src/libnest2d/include/libnest2d/geometry_traits.hpp
@@ -202,7 +202,7 @@ public:
     inline Unit area() const BP2D_NOEXCEPT {
         constexpr TCoord<P> Zero{0};
         Unit s = width() < Zero || height() < Zero ? Unit(-1) : Unit(1);
-        return s * libnest2d::abs(width() * height());
+        return s * libnest2d::abs(Unit(width()) * height());
     }
     
     static inline _Box infinite(const P &center = {TCoord<P>(0), TCoord<P>(0)});