diff --git a/pkgs/typed-racket-pkgs/typed-racket-lib/typed-racket/utils/utils.rkt b/pkgs/typed-racket-pkgs/typed-racket-lib/typed-racket/utils/utils.rkt
index 134f59d3..36a6a8b0 100644
--- a/pkgs/typed-racket-pkgs/typed-racket-lib/typed-racket/utils/utils.rkt
+++ b/pkgs/typed-racket-pkgs/typed-racket-lib/typed-racket/utils/utils.rkt
@@ -20,7 +20,7 @@ at least theoretically.
  rep utils typecheck infer env private types static-contracts)
 
 (define optimize? (make-parameter #t))
-(define-for-syntax enable-contracts? (or (getenv "PLT_TR_CONTRACTS") #t))
+(define-for-syntax enable-contracts? (and (getenv "PLT_TR_CONTRACTS") #t))
 
 (define-syntax do-contract-req
   (if enable-contracts?