--- a/UserPreferences.st	Mon Mar 13 17:15:53 2017 +0100
+++ b/UserPreferences.st	Mon Mar 13 17:21:33 2017 +0100
@@ -588,6 +588,7 @@
           nextPutLine:'ParserFlags allowSqueakExtensions: ' , (ParserFlags allowSqueakExtensions storeString) , '.';
           nextPutLine:'ParserFlags allowDolphinExtensions: ' , (ParserFlags allowDolphinExtensions storeString) , '.';
           nextPutLine:'ParserFlags allowQualifiedNames: ' , (ParserFlags allowQualifiedNames storeString) , '.';
+          nextPutLine:'ParserFlags stringsAreImmutable: ' , (ParserFlags stringsAreImmutable storeString) , '.';
           nextPutLine:'ParserFlags arraysAreImmutable: ' , (ParserFlags arraysAreImmutable storeString) , '.';
           nextPutLine:'ParserFlags lineNumberInfo: ' , (ParserFlags lineNumberInfo storeString) , '.';
 
@@ -782,6 +783,7 @@
 
     "Modified: / 09-08-2006 / 18:52:14 / fm"
     "Modified: / 26-09-2012 / 13:33:47 / cg"
+    "Modified: / 13-03-2017 / 17:21:04 / mawalch"
 ! !
 
 !UserPreferences methodsFor:'accessing'!