Index: trunk/src/org/openstreetmap/josm/tools/PlatformHookOsx.java
===================================================================
--- trunk/src/org/openstreetmap/josm/tools/PlatformHookOsx.java	(revision 5878)
+++ trunk/src/org/openstreetmap/josm/tools/PlatformHookOsx.java	(revision 5879)
@@ -256,5 +256,5 @@
     @Override
     public String getOSDescription() {
-        return System.getProperty("os.name");
+        return System.getProperty("os.name") + " " + System.getProperty("os.version");
     }
 }