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-rw-r--r--src/emu/clifront.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/emu/clifront.c b/src/emu/clifront.c
index 9b6b0315981..38927240fff 100644
--- a/src/emu/clifront.c
+++ b/src/emu/clifront.c
@@ -802,7 +802,7 @@ void cli_frontend::verifyroms(const char *gamename)
device_iterator iter(config.root_device());
for (device_t *dev = iter.first(); dev != NULL; dev = iter.next())
{
- if ((strlen(dev->shortname())>0) && dev->rom_region() != NULL && (device_map.add(dev->shortname(), 0, false) != TMERR_DUPLICATE)) {
+ if (dev->owner() != NULL && (strlen(dev->shortname())>0) && dev->rom_region() != NULL && (device_map.add(dev->shortname(), 0, false) != TMERR_DUPLICATE)) {
if (mame_strwildcmp(gamename, dev->shortname()) == 0)
{
matched++;