Index: /trunk/src/VBox/Frontends/VirtualBox/src/wizards/newvm/UIWizardNewVMPageBasic1.cpp
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/wizards/newvm/UIWizardNewVMPageBasic1.cpp	(revision 53012)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/wizards/newvm/UIWizardNewVMPageBasic1.cpp	(revision 53013)
@@ -175,6 +175,7 @@
 void UIWizardNewVMPage1::onNameChanged(QString strNewName)
 {
-    /* Do not forget about achitecture bits: */
-    strNewName += ARCH_BITS == 64 && m_fSupportsHWVirtEx && m_fSupportsLongMode ? "64" : "32";
+    /* Do not forget about achitecture bits, if not yet specified: */
+    if (!strNewName.contains("32") && !strNewName.contains("64"))
+        strNewName += ARCH_BITS == 64 && m_fSupportsHWVirtEx && m_fSupportsLongMode ? "64" : "32";
 
     /* Search for a matching OS type based on the string the user typed already. */