diff --git a/yesod/Devel.hs b/yesod/Devel.hs
index 03d8795f..09ce09aa 100755
--- a/yesod/Devel.hs
+++ b/yesod/Devel.hs
@@ -66,8 +66,8 @@ devel isDevel = do
       checkCabalFile gpd
 
       _ <- if isDevel
-        then rawSystem "cabal-dev" ["configure", "--cabal-install-arg=-fdevel"]
-        else rawSystem "cabal"     ["configure", "-fdevel"]
+        then rawSystem "cabal-dev" ["configure", "--cabal-install-arg=-fdevel", "--disable-library-profiling"]
+        else rawSystem "cabal"     ["configure", "-fdevel", "--disable-library-profiling"]
 
       T.writeFile "dist/devel.hs" (develFile pid)
 
diff --git a/yesod/main.hs b/yesod/main.hs
index a5719efa..988edfc6 100755
--- a/yesod/main.hs
+++ b/yesod/main.hs
@@ -36,7 +36,7 @@ main = do
 #endif
         ["devel"] -> devel isDev
         ["version"] -> putStrLn "0.9"
-        "configure":rest -> rawSystem cmd ("configure":"--disable-library-profiling":rest) >>= exitWith
+        "configure":rest -> rawSystem cmd ("configure":rest) >>= exitWith
         _ -> do
             putStrLn "Usage: yesod <command>"
             putStrLn "Available commands:"