From b0f2304273506947922637fa29132135cf11931f Mon Sep 17 00:00:00 2001
From: Gregor Kleen <gregor.kleen@ifi.lmu.de>
Date: Fri, 17 Apr 2020 16:00:41 +0200
Subject: [PATCH] fix(tests): fix build

---
 test/ModelSpec.hs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/test/ModelSpec.hs b/test/ModelSpec.hs
index 67196ba0a..1e2940125 100644
--- a/test/ModelSpec.hs
+++ b/test/ModelSpec.hs
@@ -63,6 +63,7 @@ instance Arbitrary Sheet where
     <*> arbitrary
     <*> arbitrary
     <*> arbitrary
+    <*> arbitrary
   shrink = genericShrink
 
 instance Arbitrary Tutorial where