diff --git a/test/objects/test.hpp b/test/objects/test.hpp
index 1a11b865..abea10e9 100644
--- a/test/objects/test.hpp
+++ b/test/objects/test.hpp
@@ -302,7 +302,7 @@ namespace test
                 BOOST_ERROR("Deallocating unknown pointer.");
             } else {
                 BOOST_TEST(pos->first.start == ptr);
-                BOOST_TEST(pos->first.end == (char*) ptr + n * size - 1);
+                BOOST_TEST(pos->first.end == (char*) ptr + n * size);
                 BOOST_TEST(pos->second.tag_ == tag);
                 BOOST_TEST(pos->second.constructed_ == 0);
                 allocated_memory.erase(pos);