diff -r 09bb8f470959 -r dc20f278e8f3 src/HOL/Analysis/Borel_Space.thy
--- a/src/HOL/Analysis/Borel_Space.thy	Thu Dec 27 23:38:55 2018 +0100
+++ b/src/HOL/Analysis/Borel_Space.thy	Fri Dec 28 10:29:59 2018 +0100
@@ -3,7 +3,7 @@
     Author:     Armin Heller, TU München
 *)
 
-section%important \<open>Borel spaces\<close>
+section%important \<open>Borel Space\<close>
 
 theory Borel_Space
 imports