diff --git a/CabalHelper/Main.hs b/CabalHelper/Main.hs
--- a/CabalHelper/Main.hs
+++ b/CabalHelper/Main.hs
@@ -52,8 +52,9 @@
 import Distribution.Simple.Setup (ConfigFlags(..),Flag(..))
 import Distribution.Simple.Build (initialBuildSteps)
 import Distribution.Simple.BuildPaths (autogenModuleName, cppHeaderName, exeExtension)
-import Distribution.Simple.Compiler (PackageDB(..))
+import Distribution.Simple.Compiler (PackageDB(..), compilerId)
 
+import Distribution.Compiler (CompilerId(..))
 import Distribution.ModuleName (components)
 import qualified Distribution.ModuleName as C (ModuleName)
 import Distribution.Text (display)
@@ -89,6 +90,7 @@
      ++"DIST_DIR ( version\n"
      ++"         | print-lbi\n"
      ++"         | write-autogen-files\n"
+     ++"         | compiler-version"
      ++"         | ghc-options     [--with-inplace]\n"
      ++"         | ghc-src-options [--with-inplace]\n"
      ++"         | ghc-pkg-options [--with-inplace]\n"
@@ -100,7 +102,7 @@
 commands :: [String]
 commands = [ "print-bli"
            , "write-autogen-files"
-           , "component-from-file"
+           , "compiler-version"
            , "ghc-options"
            , "ghc-src-options"
            , "ghc-pkg-options"
@@ -156,6 +158,10 @@
        -- calls writeAutogenFiles
       initialBuildSteps distdir pd lbi v
       return Nothing
+
+    "compiler-version":[] -> do
+      let CompilerId comp ver = compilerId $ compiler lbi
+      return $ Just $ ChResponseVersion (show comp) ver
 
     "ghc-options":flags -> do
       res <- componentsMap lbi v distdir $ \c clbi bi -> let
diff --git a/CabalHelper/Types.hs b/CabalHelper/Types.hs
--- a/CabalHelper/Types.hs
+++ b/CabalHelper/Types.hs
@@ -18,6 +18,7 @@
 module CabalHelper.Types where
 
 import GHC.Generics
+import Data.Version
 
 newtype ChModuleName = ChModuleName String
     deriving (Eq, Ord, Read, Show, Generic)
@@ -33,6 +34,7 @@
     = ChResponseStrings    [(ChComponentName, [String])]
     | ChResponseEntrypoints [(ChComponentName, ChEntrypoint)]
     | ChResponseLbi String
+    | ChResponseVersion String Version
   deriving (Eq, Ord, Read, Show, Generic)
 
 data ChEntrypoint = ChSetupEntrypoint -- ^ Almost like 'ChExeEntrypoint' but
diff --git a/CabalHelper/Wrapper.hs b/CabalHelper/Wrapper.hs
--- a/CabalHelper/Wrapper.hs
+++ b/CabalHelper/Wrapper.hs
@@ -119,23 +119,16 @@
 \Could not read Cabal's persistent setup configuration header\n\
 \- Check first line of: %s\n\
 \- Maybe try: $ cabal configure" cfgf
-        Just (hdrCabalVersion, (_compilerName, hdrCompilerVersion)) -> do
-          ghcVer <- ghcVersion opts
-          if not $ ghcVer `sameMajorVersionAs` hdrCompilerVersion
-            then panic $ printf "\
-\GHC major version changed! (was %s, now %s)\n\
-\- Reconfigure the project: $ cabal clean && cabal configure\
-\ " (showVersion hdrCompilerVersion) (showVersion ghcVer)
-            else do
-              eexe <- compileHelper opts hdrCabalVersion distdir
-              case eexe of
-                  Left e -> exitWith e
-                  Right exe ->
-                    case args' of
-                      "print-exe":_ -> putStrLn exe
-                      _ -> do
-                        (_,_,_,h) <- createProcess $ proc exe args
-                        exitWith =<< waitForProcess h
+        Just (hdrCabalVersion, _) -> do
+          eexe <- compileHelper opts hdrCabalVersion distdir
+          case eexe of
+              Left e -> exitWith e
+              Right exe ->
+                case args' of
+                  "print-exe":_ -> putStrLn exe
+                  _ -> do
+                    (_,_,_,h) <- createProcess $ proc exe args
+                    exitWith =<< waitForProcess h
 
 appDataDir :: IO FilePath
 appDataDir = (</> "cabal-helper") <$> getAppUserDataDirectory "ghc-mod"
diff --git a/cabal-helper.cabal b/cabal-helper.cabal
--- a/cabal-helper.cabal
+++ b/cabal-helper.cabal
@@ -1,5 +1,5 @@
 name:                cabal-helper
-version:             0.3.2.1
+version:             0.3.3.0
 synopsis:            Simple interface to Cabal's configuration state used by ghc-mod
 description:
     @cabal-helper@ provides a library which wraps the internal use of executables