diff --git a/system/navigator.py b/system/navigator.py
index 1ac7fe1..8bd3e75 100644
--- a/system/navigator.py
+++ b/system/navigator.py
@@ -45,9 +45,7 @@ class NavigatorView (gtk.TreeView):
             logger.log('debug', 'Selected datatype was %s. Don\'t know what to do.' % t)
 
     def display_data_info(self, data):
-        dims = []
-        for name in data.get_dim_names():
-            dims.append((name, data.dims[data._dim_num[name]]))
+        dims = zip(data.get_dim_names(), data.shape)
         
         dim_text = ", ".join(["%s (%d)" % dim for dim in dims])