diff --git a/solid/solid/backends/upower/upowerbattery.cpp b/solid/solid/backends/upower/upowerbattery.cpp

index 7b5bdc4..8bd9343 100644

--- a/solid/solid/backends/upower/upowerbattery.cpp

+++ b/solid/solid/backends/upower/upowerbattery.cpp

@@ -123,6 +123,7 @@ Solid::Battery::ChargeState Battery::chargeState() const

 void Battery::slotChanged()

 {

     if (m_device) {

+        const QString udi = m_device.data()->udi();

         const int old_chargePercent = m_chargePercent;

         const int old_capacity = m_capacity;

         const Solid::Battery::ChargeState old_chargeState = m_chargeState;

@@ -132,26 +133,26 @@ void Battery::slotChanged()

         if (old_chargePercent != m_chargePercent)

         {

-            emit chargePercentChanged(m_chargePercent, m_device.data()->udi());

+            emit chargePercentChanged(m_chargePercent, udi);

         }

         if (old_capacity != m_capacity) {

-            emit capacityChanged(m_capacity, m_device.data()->udi());

+            emit capacityChanged(m_capacity, udi);

         }

         if (old_chargeState != m_chargeState)

         {

-            emit chargeStateChanged(m_chargeState, m_device.data()->udi());

+            emit chargeStateChanged(m_chargeState, udi);

         }

         if (old_isPlugged != m_isPlugged)

         {

-            emit plugStateChanged(m_isPlugged, m_device.data()->udi());

+            emit plugStateChanged(m_isPlugged, udi);

         }

         if (old_isPowerSupply != m_isPowerSupply)

         {

-            emit powerSupplyStateChanged(m_isPowerSupply, m_device.data()->udi());

+            emit powerSupplyStateChanged(m_isPowerSupply, udi);

         }

     }

 }