1 files changed, 1 insertions, 1 deletions

diff --git a/test/bench.hs b/test/bench.hs
index 3125ed9..bf60303 100644
--- a/test/bench.hs
+++ b/test/bench.hs
@@ -59,7 +59,7 @@ countVerticesSundqvist ts = List.length vs
 countVerticesCrayne :: L.ByteString -> Int
 countVerticesCrayne bs = execState (parseOBJ builder (ObjConfig IntMap.empty) bs) 0
  where
-    builder = nullBuilder
+    builder = (nullBuilder $ return ())
         { vertex = \_ -> modify succ
         }