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-rw-r--r--src/Haddock/Interface.hs2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/Haddock/Interface.hs b/src/Haddock/Interface.hs
index 4835b08e..c8c03413 100644
--- a/src/Haddock/Interface.hs
+++ b/src/Haddock/Interface.hs
@@ -29,6 +29,7 @@ import qualified Data.Map as Map
import Data.Map (Map)
import Data.List
import Control.Monad
+import Control.Exception ( evaluate )
import GHC
import Name
@@ -148,6 +149,7 @@ processModule modsum flags modMap =
dynflags
let (interface, msg) = runWriter $ createInterface ghcMod flags modMap
liftIO $ mapM_ putStrLn msg
+ liftIO $ evaluate interface
return interface
#else
processModule :: Session -> ModSummary -> [Flag] -> ModuleMap -> IO Interface