diff --git a/enummapset.cabal b/enummapset.cabal
index d92d37f..c9cb36d 100644
--- a/enummapset.cabal
+++ b/enummapset.cabal
@@ -15,7 +15,11 @@ copyright:      (c) 2011 Michal Terepeta
 category:       Data
 build-type:     Simple
 
-cabal-version:  >=1.2
+cabal-version:  >=1.6
+
+source-repository head
+  type:         git
+  location:     https://github.com/michalt/enummapset.git
 
 Library
   exposed-modules: