diff --git a/collects/mzlib/contract.ss b/collects/mzlib/contract.ss
index bf96a1c..30abf6d 100644
--- a/collects/mzlib/contract.ss
+++ b/collects/mzlib/contract.ss
@@ -85,4 +85,4 @@
 (define (flat-contract/predicate? pred)
   (or (flat-contract? pred)
       (and (procedure? pred)
-           (procedure-arity-includes? pred 1))))
\ No newline at end of file
+           (procedure-arity-includes? pred 1))))