diff --git a/src/corelib/tools/quniquehandle_p.h b/src/corelib/tools/quniquehandle_p.h
index 7af1536c2ed..881dea07ba3 100644
--- a/src/corelib/tools/quniquehandle_p.h
+++ b/src/corelib/tools/quniquehandle_p.h
@@ -151,7 +151,7 @@ public:
         return m_handle;
     }
 
-    void reset(const Type& handle) noexcept
+    void reset(const Type& handle = HandleTraits::invalidValue()) noexcept
     {
         if (handle == m_handle)
             return;
diff --git a/tests/auto/corelib/tools/quniquehandle/tst_quniquehandle.cpp b/tests/auto/corelib/tools/quniquehandle/tst_quniquehandle.cpp
index ed46999e737..bc8f4685610 100644
--- a/tests/auto/corelib/tools/quniquehandle/tst_quniquehandle.cpp
+++ b/tests/auto/corelib/tools/quniquehandle/tst_quniquehandle.cpp
@@ -186,7 +186,7 @@ private slots:
         QCOMPARE_EQ(valid.get(), resource);
     }
 
-    void reset_resetsPreviousValueAndTakesOwnership() const
+    void reset_resetsPreviousValueAndTakesOwnership_whenCalledWithHandle() const
     {
         const auto resource0 = GlobalResource::open();
         const auto resource1 = GlobalResource::open();
@@ -198,6 +198,25 @@ private slots:
         QVERIFY(GlobalResource::isOpen(resource1));
     }
 
+    void reset_resetsOwningHandleToInvalid_whenCalledWithNoArguments() const
+    {
+        const auto resource0 = GlobalResource::open();
+
+        Handle h{ resource0 };
+        h.reset();
+
+        QVERIFY(!GlobalResource::isOpen(resource0));
+        QVERIFY(!h);
+    }
+
+    void reset_doesNothing_whenCalledOnInvalidHandle() const
+    {
+        Handle h{ };
+        h.reset();
+
+        QVERIFY(!h);
+    }
+
     void release_returnsInvalidResource_whenCalledOnInvalidHandle() const
     {
         Handle h;