diff --git a/umbrello/dialogs/pages/classgeneralpage.h b/umbrello/dialogs/pages/classgeneralpage.h
--- a/umbrello/dialogs/pages/classgeneralpage.h
+++ b/umbrello/dialogs/pages/classgeneralpage.h
@@ -96,6 +96,7 @@
     VisibilityEnumWidget *m_visibilityEnumWidget;
 
     void insertStereotypesSorted(const QString& type);
+    void setInstanceWidgetNameIfApplicable(const QString& name) const;
 
 public slots:
 
diff --git a/umbrello/dialogs/pages/classgeneralpage.cpp b/umbrello/dialogs/pages/classgeneralpage.cpp
--- a/umbrello/dialogs/pages/classgeneralpage.cpp
+++ b/umbrello/dialogs/pages/classgeneralpage.cpp
@@ -367,6 +367,7 @@
         UMLObject* o = m_pInstanceWidget->umlObject();
         if (!o) {
             uError() << "UML object of instance widget is zero.";
+            setInstanceWidgetNameIfApplicable(name);
             return;
         }
 
@@ -393,3 +394,17 @@
     }
 }
 
+/**
+ * Sets the input name to the instance widget if the change is applicable.
+ * @param name The name of the widget
+ */
+void ClassGeneralPage::setInstanceWidgetNameIfApplicable(const QString& name) const
+{
+    if(!m_pInstanceWidget)
+        return;
+
+    if(m_pInstanceWidget->isCombinedFragmentWidget() || m_pInstanceWidget->isFloatingDashLineWidget())
+    {
+        m_pInstanceWidget->setName(name);
+    }
+}