diff --git a/comps-el6.xml.in b/comps-el6.xml.in
index bf5a3fa0..499a3786 100644
--- a/comps-el6.xml.in
+++ b/comps-el6.xml.in
@@ -387,9 +387,12 @@
       <packagereq type="optional">cmucl</packagereq>
       <packagereq type="optional">colordiff</packagereq>
       <packagereq type="optional">cvsps</packagereq>
+      <packagereq type="optional">darcs</packagereq>
       <packagereq type="optional">email2trac</packagereq>
       <packagereq type="optional">ftnchek</packagereq>
+      <packagereq type="optional">ghc</packagereq>
       <packagereq type="optional">git</packagereq>
+      <packagereq type="optional">haskell-platform</packagereq>
       <packagereq type="optional">lua</packagereq>
       <packagereq type="optional">mercurial</packagereq>
       <packagereq type="optional">mock</packagereq>