diff --git a/libs/util/include/psemek/util/array.hpp b/libs/util/include/psemek/util/array.hpp
index a8f3fecd..765bf304 100644
--- a/libs/util/include/psemek/util/array.hpp
+++ b/libs/util/include/psemek/util/array.hpp
@@ -383,6 +383,9 @@ namespace psemek::util
 	template <typename T, std::size_t N>
 	void array<T, N>::resize(dims_type const & dims)
 	{
+		if (dims == dims_)
+			return;
+
 		std::unique_ptr<T[]> data(new T[detail::product(dims)]);
 		resize_impl(std::move(data), dims);
 	}
@@ -390,6 +393,9 @@ namespace psemek::util
 	template <typename T, std::size_t N>
 	void array<T, N>::resize(dims_type const & dims, T const & value)
 	{
+		if (dims == dims_)
+			return;
+
 		auto const size = detail::product(dims);
 		std::unique_ptr<T[]> data(new T[size]);
 		std::fill(data.get(), data.get() + size, value);