diff --git a/src/Collections/List.hpp b/src/Collections/List.hpp
index 3be7da1..9796881 100644
--- a/src/Collections/List.hpp
+++ b/src/Collections/List.hpp
@@ -154,7 +154,8 @@ namespace ArbUt {
         /// @return A std::vector representation of the current list.
         std::vector<ValueT>& GetStdList() noexcept { return _vector; }
 
-        inline List<ValueT>* GetListPointer() const { return this; }
+        inline const List<ValueT>* GetListPointer() const { return this; }
+        inline List<ValueT>* GetListPointer() { return this; }
     };
 }
 
diff --git a/src/Memory/__OptionalUniquePtrList.hpp b/src/Memory/__OptionalUniquePtrList.hpp
index 2808d18..9606dda 100644
--- a/src/Memory/__OptionalUniquePtrList.hpp
+++ b/src/Memory/__OptionalUniquePtrList.hpp
@@ -145,7 +145,8 @@ namespace ArbUt {
         /// @return A std::vector representation of the current list.
         std::vector<ValueT*>& GetStdList() noexcept { return _vector; }
 
-        inline OptionalUniquePtrList<ValueT>* GetListPointer() const { return this; }
+        inline const OptionalUniquePtrList<ValueT>* GetListPointer() const { return this; }
+        inline OptionalUniquePtrList<ValueT>* GetListPointer() { return this; }
     };
 }
 
diff --git a/src/Memory/__UniquePtrList.hpp b/src/Memory/__UniquePtrList.hpp
index fe3f0d6..c4fec1a 100644
--- a/src/Memory/__UniquePtrList.hpp
+++ b/src/Memory/__UniquePtrList.hpp
@@ -154,7 +154,8 @@ namespace ArbUt {
         /// @return A std::vector representation of the current list.
         std::vector<ValueT*>& GetStdList() noexcept { return _vector; }
 
-        inline UniquePtrList<ValueT>* GetListPointer() const { return this; }
+        inline const UniquePtrList<ValueT>* GetListPointer() const { return this; }
+        inline UniquePtrList<ValueT>* GetListPointer() { return this; }
     };
 }