diff --git a/segpy/catalog.py b/segpy/catalog.py
index 46921cb..27c0f92 100644
--- a/segpy/catalog.py
+++ b/segpy/catalog.py
@@ -322,7 +322,7 @@ class DictionaryCatalog2D(Catalog2D):
 
     def __repr__(self):
         return '{}(i_range={}, j_range={}, items={})'.format(
-            self.j_range, self.j_range,
+            self.i_range, self.j_range,
             self.__class__.__name__, reprlib.repr(self._items.items()))