diff --git a/racket/src/cs/rumble/hash.ss b/racket/src/cs/rumble/hash.ss
index 3a5662cea7..6f3fc92635 100644
--- a/racket/src/cs/rumble/hash.ss
+++ b/racket/src/cs/rumble/hash.ss
@@ -599,7 +599,7 @@
     (raise-arguments-error 'hash-keys-subset?
                            "given hash tables do not use the same key comparison"
                            "first table" ht1
-                           "first table" ht2)]))
+                           "second table" ht2)]))
 
 ;; Use `eql?` for recursive comparisons
 (define (hash=? ht1 ht2 eql?)