diff --git a/src/metalapi/vlan.scm b/src/metalapi/vlan.scm
index 6007066..ff9199c 100644
--- a/src/metalapi/vlan.scm
+++ b/src/metalapi/vlan.scm
@@ -1,6 +1,7 @@
 (define-module (metalapi vlan)
   #:use-module (metalapi requests)
   #:use-module (metalapi project)
+  #:use-module (json)
   #:export (build-vlan
 	    vlan->project
 	    vlan->metro-code