diff --git a/networks.rkt b/networks.rkt
index 9b76583..f987e82 100644
--- a/networks.rkt
+++ b/networks.rkt
@@ -138,7 +138,6 @@
  (contract-out [variable? (-> any/c boolean?)]
                [state? (-> any/c boolean?)]
                [update-function-form? (-> any/c boolean?)]
-               [network-form? (-> any/c boolean?)]
                [modality? (-> any/c boolean?)]
                [mode? (-> any/c boolean?)]
                [sbf/state? (-> any/c boolean?)])