diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c
index 35fa7ffcb2..b3aec718e4 100644
--- a/src/lxc/lxc_driver.c
+++ b/src/lxc/lxc_driver.c
@@ -3336,6 +3336,9 @@ lxcDomainAttachDeviceHostdevSubsysUSBLive(virLXCDriverPtr driver,
 
     mode = 0700 | S_IFCHR;
 
+    if (VIR_REALLOC_N(vm->def->hostdevs, vm->def->nhostdevs + 1) < 0)
+        goto cleanup;
+
     if (virFileMakePath(dstdir) < 0) {
         virReportSystemError(errno,
                              _("Unable to create %s"), dstdir);
@@ -3364,6 +3367,8 @@ lxcDomainAttachDeviceHostdevSubsysUSBLive(virLXCDriverPtr driver,
                                 priv->cgroup) < 0)
         goto cleanup;
 
+    vm->def->hostdevs[vm->def->nhostdevs++] = def;
+
     ret = 0;
 
 cleanup: