diff --git a/src/corelib/ipc/qtipccommon.cpp b/src/corelib/ipc/qtipccommon.cpp
index 553f3dd1996..2b71456bdc1 100644
--- a/src/corelib/ipc/qtipccommon.cpp
+++ b/src/corelib/ipc/qtipccommon.cpp
@@ -496,12 +496,6 @@ void QNativeIpcKey::setNativeKey_internal(const QString &)
     d->legacyKey_.clear();
 }
 
-/*!
-    \fn size_t QNativeIpcKey::qHash(const QNativeIpcKey &ipcKey) noexcept
-
-    Returns the hash value for \a ipcKey, using a default seed of \c 0.
-*/
-
 /*!
     \fn size_t QNativeIpcKey::qHash(const QNativeIpcKey &ipcKey, size_t seed) noexcept
 
diff --git a/src/corelib/ipc/qtipccommon.h b/src/corelib/ipc/qtipccommon.h
index 74f30cb6a44..d520a4dd682 100644
--- a/src/corelib/ipc/qtipccommon.h
+++ b/src/corelib/ipc/qtipccommon.h
@@ -153,9 +153,13 @@ private:
     constexpr bool isSlowPath() const noexcept
     { return Q_UNLIKELY(d); }
 
+#ifdef Q_QDOC
+    friend size_t qHash(const QNativeIpcKey &ipcKey, size_t seed = 0) noexcept { return 0; }
+#else
     friend Q_CORE_EXPORT size_t qHash(const QNativeIpcKey &ipcKey, size_t seed) noexcept;
     friend size_t qHash(const QNativeIpcKey &ipcKey) noexcept
     { return qHash(ipcKey, 0); }
+#endif
 
     Q_CORE_EXPORT void copy_internal(const QNativeIpcKey &other);
     Q_CORE_EXPORT void move_internal(QNativeIpcKey &&other) noexcept;