diff --git a/src/vbox/vbox_driver.c b/src/vbox/vbox_driver.c
index c64d2d610a8be90daf3b5f0e57ed81dc041099b4..b2e35e954425b90ea8231b5af3b72c03e9eb4012 100644
--- a/src/vbox/vbox_driver.c
+++ b/src/vbox/vbox_driver.c
@@ -74,7 +74,7 @@ int vboxStorageRegister(void)
     if (VBoxCGlueInit(&uVersion) == 0)
         storageDriver = vboxGetStorageDriver(uVersion);
 
-    if (virRegisterStorageDriver(storageDriver) < 0)
+    if (storageDriver && virRegisterStorageDriver(storageDriver) < 0)
         return -1;
     return 0;
 }