diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorUInt128.h b/unsupported/Eigen/CXX11/src/Tensor/TensorUInt128.h
index f5cca0ad7..4f2adb671 100644
--- a/unsupported/Eigen/CXX11/src/Tensor/TensorUInt128.h
+++ b/unsupported/Eigen/CXX11/src/Tensor/TensorUInt128.h
@@ -38,6 +38,8 @@ struct TensorUInt128
     eigen_assert(x >= 0);
   }
   EIGEN_DEVICE_FUNC EIGEN_ALWAYS_INLINE
+  TensorUInt128(unsigned int x) : high(0), low(x) { }
+  EIGEN_DEVICE_FUNC EIGEN_ALWAYS_INLINE
   TensorUInt128(int64_t x) : high(0), low(x) {
     eigen_assert(x >= 0);
   }