--- a/ProgrammingLanguage.st	Thu Aug 04 06:56:51 2016 +0200
+++ b/ProgrammingLanguage.st	Tue Aug 09 06:39:03 2016 +0200
@@ -390,7 +390,7 @@
 !ProgrammingLanguage methodsFor:'printing & storing'!
 
 printOn:aStream
-    "append a printed representation if the receiver to the argument, aStream"
+    "append a printed representation of the receiver to the argument, aStream"
 
     self class printOn: aStream.
     aStream nextPutAll: ' instance'