diff --git a/tablib/core.py b/tablib/core.py
index 168d664..b557e3e 100644
--- a/tablib/core.py
+++ b/tablib/core.py
@@ -3,7 +3,7 @@
 """ Tablib - Core Library.
 """
 
-from tablib.formats import formats
+from tablib.formats import FORMATS as formats
 
 
 __title__ = 'tablib'
diff --git a/tablib/formats/__init__.py b/tablib/formats/__init__.py
index b9c7451..e8c9007 100644
--- a/tablib/formats/__init__.py
+++ b/tablib/formats/__init__.py
@@ -3,9 +3,9 @@
 """ Tablib - formats
 """
 
-import _csv as csv
-import _json as json
-import _xls as xls
-import _yaml as yaml
+import tablib.formats._csv as csv
+import tablib.formats._json as json
+import tablib.formats._xls as xls
+import tablib.formats._yaml as yaml
 
-formats = (csv, json, xls, yaml)
+FORMATS = (csv, json, xls, yaml)