diff --git a/mtp/devicecache.cpp b/mtp/devicecache.cpp
--- a/mtp/devicecache.cpp
+++ b/mtp/devicecache.cpp
@@ -146,7 +146,7 @@
 
                     LIBMTP_mtpdevice_t *mtpDevice = LIBMTP_Open_Raw_Device_Uncached(rawDevice);
 
-                    if (udiCache.find(solidDevice.udi()) == udiCache.end()) {
+                    if (mtpDevice && udiCache.find(solidDevice.udi()) == udiCache.end()) {
                         CachedDevice *cDev = new CachedDevice(mtpDevice, rawDevice, solidDevice.udi(), timeout);
                         udiCache.insert(solidDevice.udi(), cDev);
                         nameCache.insert(cDev->getName(), cDev);