diff --git a/makebuildserver b/makebuildserver
index 9ecc9a4b..e681300a 100755
--- a/makebuildserver
+++ b/makebuildserver
@@ -540,7 +540,7 @@ def main():
         sys.exit(1)
     # Check if selected basebox is available
     available_boxes_by_provider = [x.name for x in v.box_list() if x.provider == config['vm_provider']]
-    if config['basebox'] not in available_boxes_by_provider:
+    if '/' not in config['basebox'] and config['basebox'] not in available_boxes_by_provider:
         logger.critical("Vagrant box '{basebox}' not available "
                         "for '{vm_provider}' VM provider. "
                         "Please make sure it's added to vagrant. "