diff --git a/app/ghcup/BrickMain.hs b/app/ghcup/BrickMain.hs
index ba6d8bc..497c2ba 100644
--- a/app/ghcup/BrickMain.hs
+++ b/app/ghcup/BrickMain.hs
@@ -448,7 +448,7 @@ install' _ (_, ListResult {..}) = do
       case lTool of
         GHC   -> do
           let vi = getVersionInfo lVer GHC dls
-          liftE $ installGHCBin lVer $> vi
+          liftE $ installGHCBin lVer Nothing $> vi
         Cabal -> do
           let vi = getVersionInfo lVer Cabal dls
           liftE $ installCabalBin lVer $> vi
diff --git a/app/ghcup/Main.hs b/app/ghcup/Main.hs
index 0e0f26f..d5bb1c4 100644
--- a/app/ghcup/Main.hs
+++ b/app/ghcup/Main.hs
@@ -1601,28 +1601,22 @@ Report bugs at <https://gitlab.haskell.org/haskell/ghcup-hs/issues>|]
           -----------------------
 
           let installGHC InstallOptions{..} =
-                (case isolateDir of
-                   Just isoDir -> runInstTool instPlatform $ do
-                    (v, vi) <- liftE $ fromVersion instVer GHC
-                    let ghcVersion = _tvVersion v
-                    liftE $ installGHCBinIsolated isoDir ghcVersion
-                    pure vi
-                   Nothing ->
-                     case instBindist of
-                       Nothing -> runInstTool instPlatform $ do
-                         (v, vi) <- liftE $ fromVersion instVer GHC
-                         liftE $ installGHCBin (_tvVersion v)
-                         when instSet $ void $ liftE $ setGHC v SetGHCOnly
-                         pure vi
-                       Just uri -> do
-                         s' <- liftIO appState
-                         runInstTool' s'{ settings = settings {noVerify = True}} instPlatform $ do
-                           (v, vi) <- liftE $ fromVersion instVer GHC
-                           liftE $ installGHCBindist
-                             (DownloadInfo uri (Just $ RegexDir "ghc-.*") "")
-                             (_tvVersion v)
-                           when instSet $ void $ liftE $ setGHC v SetGHCOnly
-                           pure vi
+                (case instBindist of
+                   Nothing -> runInstTool instPlatform $ do
+                     (v, vi) <- liftE $ fromVersion instVer GHC
+                     liftE $ installGHCBin (_tvVersion v) isolateDir
+                     when instSet $ void $ liftE $ setGHC v SetGHCOnly
+                     pure vi
+                   Just uri -> do
+                     s' <- liftIO appState
+                     runInstTool' s'{ settings = settings {noVerify = True}} instPlatform $ do
+                       (v, vi) <- liftE $ fromVersion instVer GHC
+                       liftE $ installGHCBindist
+                         (DownloadInfo uri (Just $ RegexDir "ghc-.*") "")
+                         (_tvVersion v)
+                         isolateDir
+                       when instSet $ void $ liftE $ setGHC v SetGHCOnly
+                       pure vi
                   )
                     >>= \case
                           VRight vi -> do
diff --git a/lib/GHCup.hs b/lib/GHCup.hs
index 0de2f92..5f86cad 100644
--- a/lib/GHCup.hs
+++ b/lib/GHCup.hs
@@ -405,6 +405,7 @@ installGHCBin :: ( MonadFail m
                  , MonadUnliftIO m
                  )
               => Version         -- ^ the version to install
+              -> Maybe FilePath  -- ^ isolated install filepath, if user passed any
               -> Excepts
                    '[ AlreadyInstalled
                     , BuildFailed
@@ -420,9 +421,9 @@ installGHCBin :: ( MonadFail m
                     ]
                    m
                    ()
-installGHCBin ver = do
+installGHCBin ver isoFilepath = do
   dlinfo <- liftE $ getDownloadInfo GHC ver
-  installGHCBindist dlinfo ver
+  installGHCBindist dlinfo ver isoFilepath
 
 
 -- | Like 'installCabalBin', except takes the 'DownloadInfo' as