--- a/ChangesBrowser.st	Sun May 08 00:12:39 2016 +0200
+++ b/ChangesBrowser.st	Sun May 08 00:13:03 2016 +0200
@@ -6047,6 +6047,11 @@
     "/ we can do it each time the selection changes
     "/ (can we?)
     className := self realClassNameOfChange:lineNr.
+    className isNil ifTrue:[
+        infoHolder value:nil.
+        ^ self
+    ].
+    
     nonMetaClassName := (className endsWith:' class')
                             ifTrue:[ className copyButLast:' class' size ]
                             ifFalse:[ className ].