diff --git a/include/gsl/pointers b/include/gsl/pointers
index 17c756b..633c6c6 100644
--- a/include/gsl/pointers
+++ b/include/gsl/pointers
@@ -117,7 +117,6 @@ public:
     not_null& operator=(const not_null& other) = default;
     constexpr details::value_or_reference_return_t<T> get() const
     {
-        Ensures(ptr_ != nullptr);
         return ptr_;
     }