diff --git a/src/corelib/global/qcomparehelpers.h b/src/corelib/global/qcomparehelpers.h
index fce751be09f..2da7fbd8254 100644
--- a/src/corelib/global/qcomparehelpers.h
+++ b/src/corelib/global/qcomparehelpers.h
@@ -648,6 +648,9 @@ class totally_ordered_wrapper
     P ptr;
 public:
     totally_ordered_wrapper() noexcept = default;
+    Q_IMPLICIT constexpr totally_ordered_wrapper(std::nullptr_t)
+        // requires std::is_pointer_v<P>
+        : totally_ordered_wrapper(P{nullptr}) {}
     explicit constexpr totally_ordered_wrapper(P p) noexcept : ptr(p) {}
 
     constexpr P get() const noexcept { return ptr; }
diff --git a/tests/auto/corelib/global/qcomparehelpers/tst_qcomparehelpers.h b/tests/auto/corelib/global/qcomparehelpers/tst_qcomparehelpers.h
index 16398b0978a..837170d2381 100644
--- a/tests/auto/corelib/global/qcomparehelpers/tst_qcomparehelpers.h
+++ b/tests/auto/corelib/global/qcomparehelpers/tst_qcomparehelpers.h
@@ -58,6 +58,8 @@ private Q_SLOTS:
     // Add new test cases to tst_qcomparehelpers1.cpp, because minGW already
     // complains about a too large tst_qcomparehelpers.cpp.obj object file
     void compareWithAttributes();
+
+    void totallyOrderedWrapperBasics();
 };
 
 #endif // TST_QCOMPAREHELPERS_H
diff --git a/tests/auto/corelib/global/qcomparehelpers/tst_qcomparehelpers1.cpp b/tests/auto/corelib/global/qcomparehelpers/tst_qcomparehelpers1.cpp
index 16b2842de27..33967f314c4 100644
--- a/tests/auto/corelib/global/qcomparehelpers/tst_qcomparehelpers1.cpp
+++ b/tests/auto/corelib/global/qcomparehelpers/tst_qcomparehelpers1.cpp
@@ -54,3 +54,10 @@ void tst_QCompareHelpers::compareWithAttributes()
 
 #undef COMPARE
 }
+
+void tst_QCompareHelpers::totallyOrderedWrapperBasics()
+{
+    Qt::totally_ordered_wrapper<int*> pi; // partially-formed
+    pi = nullptr;
+    QCOMPARE_EQ(pi.get(), nullptr);
+}