diff --git a/collects/honu/core/main.rkt b/collects/honu/core/main.rkt
index 0d8d25c314..d5f93c509f 100644
--- a/collects/honu/core/main.rkt
+++ b/collects/honu/core/main.rkt
@@ -50,7 +50,7 @@
                                    [honu->= >=]
                                    [honu-<= <=]
                                    ;; [honu-equal =]
-                                   ;; [honu-assignment :=]
+                                   [honu-assignment :=]
                                    [honu-map map]
                                    [honu-flow \|]
                                    [honu-dot %dot]
diff --git a/collects/honu/core/private/parse2.rkt b/collects/honu/core/private/parse2.rkt
index bfa2c21129..6d4f2fa103 100644
--- a/collects/honu/core/private/parse2.rkt
+++ b/collects/honu/core/private/parse2.rkt
@@ -320,10 +320,10 @@
                                           (if current
                                             (if binary-transformer
                                               (binary-transformer current stuff)
-                                              (error '#'head "cannot be used as a binary operator"))
+                                              (error 'binary "cannot be used as a binary operator in ~a" #'head))
                                             (if unary-transformer
                                               (unary-transformer stuff)
-                                              (error '#'head "cannot be used as a unary operator"))))
+                                              (error 'unary "cannot be used as a unary operator in ~a" #'head))))
                                         (emit-local-step stuff output #:id #'binary-transformer)
                                         (with-syntax ([out (parse-all output)])
                                           #'(%racket out)))