diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -13,4 +13,4 @@
 
 check the original blog post for more information:
 
-    [http://tab.snarc.org/posts/haskell/2013-03-13-cabal-db.html]
+http://tab.snarc.org/posts/haskell/2013-03-13-cabal-db.html
diff --git a/Src/Main.hs b/Src/Main.hs
--- a/Src/Main.hs
+++ b/Src/Main.hs
@@ -28,7 +28,7 @@
 import qualified Data.Map as M
 import Data.List
 
-platformPackages = map PackageName
+platformPackages = map PackageName $
     ["array"
     ,"base", "bytestring"
     ,"containers", "cgi"
@@ -49,6 +49,10 @@
     ,"vector"
     ,"xhtml"
     ,"zlib"
+    ] ++ -- not stricly platform package, but ask as such
+    ["GHC"
+    ,"Cabal"
+    ,"ghc-prim"
     ]
 
 -- FIXME use cabal's Version type.
diff --git a/cabal-db.cabal b/cabal-db.cabal
--- a/cabal-db.cabal
+++ b/cabal-db.cabal
@@ -1,5 +1,5 @@
 Name:                cabal-db
-Version:             0.1.0
+Version:             0.1.1
 Synopsis:            cabal-db
 Description:         cabal-db
 License:             BSD3
@@ -21,7 +21,7 @@
   Build-depends:     base >= 4 && < 5
                    , mtl
                    , Cabal
-                   , tar
+                   , tar >= 0.4.0
                    , containers
                    , filepath
                    , directory