diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
index ac63570e90ed7c7cd940650f1164c209bc13ee88..b881f1e4d16d4daaadbd97545b9ab473ecfb20ec 100644
--- a/src/qemu/qemu_conf.c
+++ b/src/qemu/qemu_conf.c
@@ -505,6 +505,9 @@ qemudGetOldMachinesFromInfo(virCapsGuestDomainInfoPtr info,
     virCapsGuestMachinePtr *list;
     int i;
 
+    if (!info->nmachines)
+        return 0;
+
     if (!info->emulator || !STREQ(emulator, info->emulator))
         return 0;