diff --git a/src/solid/devices/frontend/device.cpp b/src/solid/devices/frontend/device.cpp
--- a/src/solid/devices/frontend/device.cpp
+++ b/src/solid/devices/frontend/device.cpp
@@ -219,7 +219,9 @@
 Solid::DevicePrivate::~DevicePrivate()
 {
     Q_FOREACH (DeviceInterface *iface, m_ifaces) {
-        delete iface->d_ptr->backendObject();
+        if (iface->isValid()) {
+            delete iface->d_ptr->backendObject();
+        }
     }
     setBackendObject(nullptr);
 }