diff --git a/src/json.hpp b/src/json.hpp
index 8e747659..68c78b53 100644
--- a/src/json.hpp
+++ b/src/json.hpp
@@ -2385,7 +2385,7 @@ class basic_json
     template<typename PointerType, typename
              std::enable_if<
                  std::is_pointer<PointerType>::value
-                 and std::is_const<PointerType>::value
+                 and std::is_const< typename std::remove_pointer<PointerType>::type >::value
                  , int>::type = 0>
     const PointerType get_ptr() const noexcept
     {