diff --git a/setup.cfg b/setup.cfg
index cba4e8d8..5e92e4cd 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -45,7 +45,7 @@ xdem =
 [options.packages.find]
 include =
     xdem
-    coreg
+    xdem.coreg
 
 [options.extras_require]
 opt =