diff --git a/src/site.hs b/src/site.hs
index 08ee4df..17f9a7c 100644
--- a/src/site.hs
+++ b/src/site.hs
@@ -140,12 +140,12 @@ main = do
     rulesExtraDependencies [clayDeps] $ create ["default.css"] $ do
       route     idRoute
       compile $ makeItem =<< (unsafeCompiler $ do
-        (_, hout, _, ph) <- createProcess $ shell "cabal build gencss"
+        (_, hout, _, ph) <- createProcess $ shell "stack build blog-rekahsoft-ca:gencss"
         exitCode <- waitForProcess ph
         if exitCode == ExitSuccess
-           then readProcess "cabal" ["run", "--verbose=0", "gencss", "compact"] ""
+           then readProcess "stack" ["exec", "gencss", "--", "compact"] ""
            else case hout of
-                 Nothing -> fail "Error running 'cabal build gencss'"
+                 Nothing -> fail "Error running 'stack build blog-rekahsoft-ca:gencss'"
                  Just hout' -> hGetContents hout' >>= fail)
 
     rulesExtraDependencies [manifestDeps] $ create ["manifest.appcache"] $ do