diff --git a/src/ikarus.boot b/src/ikarus.boot
index 1437270..75ba0b0 100644
Binary files a/src/ikarus.boot and b/src/ikarus.boot differ
diff --git a/src/ikarus.syntax.ss b/src/ikarus.syntax.ss
index 4c7b5d5..4ec54b7 100644
--- a/src/ikarus.syntax.ss
+++ b/src/ikarus.syntax.ss
@@ -1063,6 +1063,8 @@
                                           "~s is not a record of type ~s"
                                           x ',rtd)))))
                        setters i*))))])))
+  (define incorrect-usage-macro
+    (lambda (e) (stx-error e "incorrect usage of auxilary keyword")))
   (define parameterize-transformer ;;; go away
     (lambda (e r mr)
       (syntax-match e ()
@@ -1553,18 +1555,20 @@
         [(procedure? x) x]
         [(symbol? x)
          (case x
-           [(define-record) define-record-macro]
-           [(include)       include-macro]
-           [(cond)          cond-macro]
-           [(let)           let-macro]
-           [(do)            do-macro]
-           [(or)            or-macro]
-           [(and)           and-macro]
-           [(let*)          let*-macro]
-           [(syntax-rules)  syntax-rules-macro]
-           [(quasiquote)    quasiquote-macro]
-           [(with-syntax)   with-syntax-macro]
-           [(identifier-syntax)   identifier-syntax-macro]
+           [(define-record)     define-record-macro]
+           [(include)           include-macro]
+           [(cond)              cond-macro]
+           [(let)               let-macro]
+           [(do)                do-macro]
+           [(or)                or-macro]
+           [(and)               and-macro]
+           [(let*)              let*-macro]
+           [(syntax-rules)      syntax-rules-macro]
+           [(quasiquote)        quasiquote-macro]
+           [(with-syntax)       with-syntax-macro]
+           [(identifier-syntax) identifier-syntax-macro]
+           [(...)               incorrect-usage-macro]
+           [(=>)                incorrect-usage-macro]
            [else (error 'macro-transformer "invalid macro ~s" x)])]
         [else (error 'core-macro-transformer "invalid macro ~s" x)])))
   (define (local-macro-transformer x)
diff --git a/src/makefile.ss b/src/makefile.ss
index b800197..eb64ee7 100755
--- a/src/makefile.ss
+++ b/src/makefile.ss
@@ -108,7 +108,9 @@
     [cond              (macro . cond)]
     [do                (macro . do)]
     [and               (macro . and)]
-    [or                (macro . or)]))
+    [or                (macro . or)]
+    [...               (macro . ...)]
+    ))
 
 (define library-legend
   '([i           (ikarus)                     #t]
@@ -194,41 +196,43 @@
 
 
 (define ikarus-macros-map
-  '([define           i r]
-    [define-syntax    i r]
-    [let-syntax       i r]
-    [letrec-syntax    i r]
-    [module           i cm]
-    [begin            i r]
-    [import           i]
-    [set!             i r]
-    [foreign-call     i]
-    [quote            i r]
-    [syntax-case      i syncase]
-    [syntax           i syncase]
-    [lambda           i r]
-    [case-lambda      i r]
-    [type-descriptor  i  ]
-    [letrec           i r]
-    [letrec*          i r]
-    [if               i r]
-    [when             i r]
-    [unless           i r]
-    [parameterize     i parameters]
-    [case             i r]
-    [let-values       i r]
-    [define-record    i r]
-    [include          i r]
-    [syntax-rules     i r]
-    [quasiquote       i r]
-    [with-syntax      i syncase]
-    [let              i r]
+  '([define            i r]
+    [define-syntax     i r]
+    [let-syntax        i r]
+    [letrec-syntax     i r]
+    [module            i cm]
+    [begin             i r]
+    [import            i]
+    [set!              i r]
+    [foreign-call      i]
+    [quote             i r]
+    [syntax-case       i syncase]
+    [syntax            i syncase]
+    [lambda            i r]
+    [case-lambda       i r]
+    [type-descriptor   i  ]
+    [letrec            i r]
+    [letrec*           i r]
+    [if                i r]
+    [when              i r]
+    [unless            i r]
+    [parameterize      i parameters]
+    [case              i r]
+    [let-values        i r]
+    [define-record     i r]
+    [include           i r]
+    [syntax-rules      i r]
+    [quasiquote        i r]
+    [with-syntax       i syncase]
+    [let               i r]
     [identifier-syntax i r]
-    [let*             i r]
-    [cond             i r]
-    [do               i r]
-    [and              i r]
-    [or               i r]))
+    [let*              i r]
+    [cond              i r]
+    [do                i r]
+    [and               i r]
+    [or                i r]
+    [...               i r]
+    ))
 
 (define ikarus-procedures-map
   '([void                    i]
diff --git a/src/todo-r6rs.ss b/src/todo-r6rs.ss
index 37fc4a7..78e59c1 100755
--- a/src/todo-r6rs.ss
+++ b/src/todo-r6rs.ss
@@ -230,7 +230,7 @@
     [vector-set!                                C ba]
     [vector?                                    C ba]
     [zero?                                      C ba]
-    [...                                        S ba sc]
+    [...                                        C ba sc]
     [=>                                         S ba ex]
     [_                                          S ba sc]
     [else                                       S ba ex]