Index: /trunk/src/VBox/Main/GuestImpl.cpp
===================================================================
--- /trunk/src/VBox/Main/GuestImpl.cpp	(revision 31441)
+++ /trunk/src/VBox/Main/GuestImpl.cpp	(revision 31442)
@@ -220,5 +220,5 @@
                 }
 
-                Bstr additionsVersion = BstrFmt("%lsr%ls",
+                Bstr additionsVersion = BstrFmt("%ls r%ls",
                                                 addVersion.raw(), addRevision.raw());
                 additionsVersion.cloneTo(aAdditionsVersion);
@@ -1561,5 +1561,5 @@
          * become "x.y.z_BETA1_FOOBARr12345".
          */
-        mData.mAdditionsVersion = BstrFmt("%lsr%ls", aVersionName.raw(), aRevision.raw());
+        mData.mAdditionsVersion = BstrFmt("%ls r%ls", aVersionName.raw(), aRevision.raw());
     else /* aAdditionsVersion is in x.y.zr12345 format. */
         mData.mAdditionsVersion = aAdditionsVersion;