diff --git a/collects/honu/core/main.rkt b/collects/honu/core/main.rkt
index 74d709649c..56a5c48edb 100644
--- a/collects/honu/core/main.rkt
+++ b/collects/honu/core/main.rkt
@@ -65,7 +65,8 @@
                                    [honu-structure struct]
                                    [honu-syntax syntax]
                                    [honu-equal =]
-                                   [honu-+= +=]
+                                   [honu-+= +=] [honu--= -=]
+                                   [honu-*= *=] [honu-/= /=]
                                    [literal:honu-prefix prefix]
                                    [literal:honu-then then]
                                    [literal:colon %colon]