diff --git a/sources/uml/UMLClassDefinitionListComposite.cls b/sources/uml/UMLClassDefinitionListComposite.cls
index 1544d5a..d0b21eb 100644
--- a/sources/uml/UMLClassDefinitionListComposite.cls
+++ b/sources/uml/UMLClassDefinitionListComposite.cls
@@ -51,7 +51,7 @@ showImplementationsOf: anUMLClass
 
 	implementationsPresenter model: (ListModel on: (anUMLClass implementations asSortedCollection: [:a :b | a name <= b name])).
 
-	instVarPresenter model: (ListModel on: (anUMLClass basicVariables asSortedCollection: [:a :b | a name <= b name])).
+	instVarPresenter model: (ListModel on: (anUMLClass basicAndObjectVariables asSortedCollection: [:a :b | a name <= b name])).
 
 	relationsPresenter model: (ListModel on: (anUMLClass relations asSortedCollection: [:a :b | a printName <= b printName])).! !
 !UMLClassDefinitionListComposite categoriesFor: #classes!public! !
diff --git a/sources/uml/UMLObjectBehavior.cls b/sources/uml/UMLObjectBehavior.cls
index 708c7b4..438438a 100644
--- a/sources/uml/UMLObjectBehavior.cls
+++ b/sources/uml/UMLObjectBehavior.cls
@@ -57,13 +57,17 @@ atVariableName: stringName
 atVariableName: stringName ifAbsent: aBlock 
 	^instancesVariables at: stringName asSymbol ifAbsent: [instancesVariables at: stringName asString ifAbsent: aBlock]!
 
+basicAndObjectVariables
+
+	^instancesVariables reject: [:each | each hasMultipleInstances]!
+
 basicImplementationNamed: aSymbol
 
 	^implementations at: aSymbol ifAbsent: [nil]!
 
 basicVariables
 
-	^instancesVariables reject: [:each | each hasMultipleInstances]!
+	^instancesVariables select: [:each | each isBasic]!
 
 belongToVirtualMachine
 
@@ -317,6 +321,7 @@ vmPerform: aSymbol withArguments: anArray  parentSnapshot: anUMLExecutionSnapsho
 !UMLObjectBehavior categoriesFor: #attributes!instance variables!public! !
 !UMLObjectBehavior categoriesFor: #atVariableName:!instance variables!public! !
 !UMLObjectBehavior categoriesFor: #atVariableName:ifAbsent:!instance variables!public! !
+!UMLObjectBehavior categoriesFor: #basicAndObjectVariables!instance variables!public! !
 !UMLObjectBehavior categoriesFor: #basicImplementationNamed:!behavior!public! !
 !UMLObjectBehavior categoriesFor: #basicVariables!instance variables!public! !
 !UMLObjectBehavior categoriesFor: #belongToVirtualMachine!public! !
diff --git a/sources/uml/UMLSmalltalkMapper.cls b/sources/uml/UMLSmalltalkMapper.cls
index 3ae9903..317a1f4 100644
--- a/sources/uml/UMLSmalltalkMapper.cls
+++ b/sources/uml/UMLSmalltalkMapper.cls
@@ -392,7 +392,7 @@ getAspectsForStClass: aidaWebClass aspect: aspectSymbol
 		ifFalse: [(aspectObject smalltalkObject first umlClass getImplementationsFor: UMLGUICollectionAspectsCategory current) collect: [:each | each name]].
 	aspectsArray := '#('.
 	aspectsNames isEmpty "ifNone: display basicVariables. ifNone then the collection aspects has not been configured"
-		ifTrue: [aspectsNames := aspectObject umlClass basicVariables collect: [:each | each name]].
+		ifTrue: [aspectsNames := aspectObject umlClass basicAndObjectVariables collect: [:each | each name]].
 	aspectsNames do: [:each | aspectsArray := aspectsArray, each, ' '].
 	aspectsArray := aspectsArray, ')'.
 	^aspectsArray .