diff --git a/src/core/batch.rkt b/src/core/batch.rkt
index 68802b12f..e81466d34 100644
--- a/src/core/batch.rkt
+++ b/src/core/batch.rkt
@@ -3,7 +3,6 @@
 (require "../utils/timeline.rkt"
          "../syntax/syntax.rkt"
          "../syntax/types.rkt")
-(require racket/mutability)
 
 (provide progs->batch ; (List-of Exprs) -> Batch
          batch->progs ; Batch -> (List-of Exprs)