diff --git a/collects/parser-tools/private-yacc/grammar.ss b/collects/parser-tools/private-yacc/grammar.ss
index 9e7db7d..4e7ad7e 100644
--- a/collects/parser-tools/private-yacc/grammar.ss
+++ b/collects/parser-tools/private-yacc/grammar.ss
@@ -7,7 +7,7 @@
   (require (lib "class.ss")
            (lib "list.ss")
            "yacc-helper.ss"
-           (lib "contracts.ss"))
+           (lib "contract.ss"))
   
   ;; Each production has a unique index 0 <= index <= number of productions
   (define-struct prod (lhs rhs index prec action) (make-inspector))
diff --git a/collects/parser-tools/private-yacc/input-file-parser.ss b/collects/parser-tools/private-yacc/input-file-parser.ss
index 2ab790d..fbc8568 100644
--- a/collects/parser-tools/private-yacc/input-file-parser.ss
+++ b/collects/parser-tools/private-yacc/input-file-parser.ss
@@ -8,7 +8,7 @@
            "../private-lex/token-syntax.ss"
            "grammar.ss"
            (lib "class.ss")
-           (lib "contracts.ss"))
+           (lib "contract.ss"))
   
 
   (provide/contract 
diff --git a/collects/parser-tools/private-yacc/parser-builder.ss b/collects/parser-tools/private-yacc/parser-builder.ss
index f4e07ed..ca84f5e 100644
--- a/collects/parser-tools/private-yacc/parser-builder.ss
+++ b/collects/parser-tools/private-yacc/parser-builder.ss
@@ -5,7 +5,7 @@
            "grammar.ss"
            "table.ss"
            (lib "class.ss")
-           (lib "contracts.ss"))
+           (lib "contract.ss"))
   
   (provide/contract
    (build-parser ((string? any? any? syntax? (listof syntax?) (listof syntax?)