diff --git a/src/Memory/__OptionalUniquePtrList.hpp b/src/Memory/__OptionalUniquePtrList.hpp
index cd64c6a..f6ca1a8 100644
--- a/src/Memory/__OptionalUniquePtrList.hpp
+++ b/src/Memory/__OptionalUniquePtrList.hpp
@@ -38,6 +38,7 @@ namespace ArbUt {
             for (auto& i : _vector) {
                 delete i;
             }
+            _vector.clear();
         }
 
         /// @brief Borrow a pointer at a certain index.
diff --git a/src/Memory/__UniquePtrList.hpp b/src/Memory/__UniquePtrList.hpp
index f720ed4..1322488 100644
--- a/src/Memory/__UniquePtrList.hpp
+++ b/src/Memory/__UniquePtrList.hpp
@@ -43,6 +43,7 @@ namespace ArbUt {
             for (auto& i : _vector) {
                 delete i;
             }
+            _vector.clear();
         }
 
         /// @brief Borrow a pointer at a certain index.