--- a/ProjectChecker.st	Wed Oct 31 17:07:54 2012 +0100
+++ b/ProjectChecker.st	Wed Oct 31 17:08:58 2012 +0100
@@ -96,7 +96,7 @@
 !ProjectChecker class methodsFor:'others'!
 
 version_CVS
-    ^ '$Header: /cvs/stx/stx/libbasic3/ProjectChecker.st,v 1.8 2012-09-18 00:10:30 vrany Exp $'
+    ^ '$Header: /cvs/stx/stx/libbasic3/ProjectChecker.st,v 1.9 2012-10-31 16:08:58 stefan Exp $'
 ! !
 
 !ProjectChecker methodsFor:'accessing'!
@@ -217,7 +217,7 @@
             ].
         ].
 
-        eachClass superclass package == eachClass package ifTrue:[
+        (eachClass superclass notNil and:[eachClass superclass package == eachClass package]) ifTrue:[
             (classesInDescriptionChecked includes: eachClass superclass) ifFalse:[
                 self addProblem:
                     (ProjectProblem newClassListedBeforeItsSuperclass
@@ -563,7 +563,7 @@
 !ProjectChecker class methodsFor:'documentation'!
 
 version
-    ^ '$Header: /cvs/stx/stx/libbasic3/ProjectChecker.st,v 1.8 2012-09-18 00:10:30 vrany Exp $'
+    ^ '$Header: /cvs/stx/stx/libbasic3/ProjectChecker.st,v 1.9 2012-10-31 16:08:58 stefan Exp $'
 !
 
 version_SVN