diff -r 1d122af2b11a -r 9f9f60f4dbbf src/HOL/Library/Simps_Case_Conv.thy
--- a/src/HOL/Library/Simps_Case_Conv.thy	Wed Apr 02 13:03:01 2014 +0200
+++ b/src/HOL/Library/Simps_Case_Conv.thy	Wed Apr 02 13:54:50 2014 +0200
@@ -4,7 +4,7 @@
 
 theory Simps_Case_Conv
   imports Main
-  keywords "simps_of_case" "case_of_simps" :: thy_decl
+  keywords "simps_of_case" :: thy_decl == "" and "case_of_simps" :: thy_decl
 begin
 
 ML_file "simps_case_conv.ML"