diff -r d72ca5742f80 -r c0eafbd55de3 src/HOL/Semiring_Normalization.thy
--- a/src/HOL/Semiring_Normalization.thy	Wed Aug 22 22:47:16 2012 +0200
+++ b/src/HOL/Semiring_Normalization.thy	Wed Aug 22 22:55:41 2012 +0200
@@ -6,10 +6,10 @@
 
 theory Semiring_Normalization
 imports Numeral_Simprocs Nat_Transfer
-uses
-  "Tools/semiring_normalizer.ML"
 begin
 
+ML_file "Tools/semiring_normalizer.ML"
+
 text {* Prelude *}
 
 class comm_semiring_1_cancel_crossproduct = comm_semiring_1_cancel +