diff --git a/collects/parser-tools/private-yacc/input-file-parser.ss b/collects/parser-tools/private-yacc/input-file-parser.ss
index 388ac62..f0ecdaa 100644
--- a/collects/parser-tools/private-yacc/input-file-parser.ss
+++ b/collects/parser-tools/private-yacc/input-file-parser.ss
@@ -152,8 +152,7 @@
             (syntax-case prec-decls ()
               (((type term ...) ...)
                (let ((p-terms 
-                      (apply append (syntax-object->datum 
-                                     (syntax ((term ...) ...))))))
+                      (syntax-object->datum (syntax (term ... ...)))))
                  (cond
                    ((duplicate-list? p-terms) =>
                     (lambda (d)
@@ -186,7 +185,7 @@
                             "Associativity must be left, right or nonassoc"
                             type)))
                      (syntax->list (syntax (type ...))))
-                    (cdr (syntax-object->datum prec-decls))))))
+                    (syntax-object->datum prec-decls)))))
               (#f null)
               (_
                (raise-syntax-error
diff --git a/collects/parser-tools/private-yacc/parser-builder.ss b/collects/parser-tools/private-yacc/parser-builder.ss
index 4d90ac6..64aa379 100644
--- a/collects/parser-tools/private-yacc/parser-builder.ss
+++ b/collects/parser-tools/private-yacc/parser-builder.ss
@@ -62,12 +62,12 @@
                      (if assocs
                          (map get-term-binder
                               (syntax-case assocs ()
-                                ((_ (__ term ...) ...)
+                                (((__ term ...) ...)
                                  (syntax->list (syntax (term ... ...))))))
                          null)))
         #`(when #f
             (let ((bind void) ...)
-              (void ))))));bound ... ... term-group ... start ... end ... prec ...))))))
+              (void bound ... ... term-group ... start ... end ... prec ...))))))
   
   (define (build-parser filename src-pos suppress input-terms start end assocs prods)
     (let* ((grammar (parse-input input-terms start end assocs prods src-pos))