diff --git a/src/corelib/kernel/qproperty.cpp b/src/corelib/kernel/qproperty.cpp
index c742e2194a0..d165e155fb3 100644
--- a/src/corelib/kernel/qproperty.cpp
+++ b/src/corelib/kernel/qproperty.cpp
@@ -380,7 +380,7 @@ QPropertyObserver::~QPropertyObserver()
     d.unlink();
 }
 
-QPropertyObserver::QPropertyObserver(QPropertyObserver &&other)
+QPropertyObserver::QPropertyObserver(QPropertyObserver &&other) noexcept
 {
     bindingToMarkDirty = std::exchange(other.bindingToMarkDirty, {});
     next = std::exchange(other.next, {});
@@ -393,7 +393,7 @@ QPropertyObserver::QPropertyObserver(QPropertyObserver &&other)
         *nodeState = this;
 }
 
-QPropertyObserver &QPropertyObserver::operator=(QPropertyObserver &&other)
+QPropertyObserver &QPropertyObserver::operator=(QPropertyObserver &&other) noexcept
 {
     if (this == &other)
         return *this;
diff --git a/src/corelib/kernel/qproperty.h b/src/corelib/kernel/qproperty.h
index 46afbcafa76..5f1ef5bd83d 100644
--- a/src/corelib/kernel/qproperty.h
+++ b/src/corelib/kernel/qproperty.h
@@ -229,8 +229,8 @@ public:
     };
 
     constexpr QPropertyObserver() = default;
-    QPropertyObserver(QPropertyObserver &&other);
-    QPropertyObserver &operator=(QPropertyObserver &&other);
+    QPropertyObserver(QPropertyObserver &&other) noexcept;
+    QPropertyObserver &operator=(QPropertyObserver &&other) noexcept;
     ~QPropertyObserver();
 
     template<typename Property, typename = typename Property::InheritsQUntypedPropertyData>