index d85cc40e9..239551697 100644
--- a/src/shogun/lib/any.h
+++ b/src/shogun/lib/any.h
@@ -279,10 +279,10 @@ namespace shogun {
                        return compare(lhs(), rhs());
                }

-               template <class T>
+               template <class T,
+                       std::enable_if_t<utils::is_container<T>::value>* = nullptr>
                bool compare_impl(
-                   maybe_most_important, const std::vector<T>& lhs,
-                   const std::vector<T>& rhs)
+                   maybe_most_important, const T& lhs, const T& rhs)
                {
                        if (lhs.size() != rhs.size())
                        {