diff --git a/tstl/include/unique_ptr.hpp b/tstl/include/unique_ptr.hpp
index 135551fc..e0a7d0cc 100644
--- a/tstl/include/unique_ptr.hpp
+++ b/tstl/include/unique_ptr.hpp
@@ -187,11 +187,11 @@ public:
     }
 
     void reset(pointer_type p){
-        if(get() != pointer_type()){
-            get_deleter()(get());
-        }
-
+        auto tmp = get();
         std::get<0>(_data) = p;
+        if(tmp){
+            get_deleter()(tmp);
+        }
     }
 };