1 files changed, 1 insertions, 0 deletions

diff --git a/src/Control/Concurrent/Lifted/Instrument.hs b/src/Control/Concurrent/Lifted/Instrument.hs
index 9ec5deef..e5ed9d5e 100644
--- a/src/Control/Concurrent/Lifted/Instrument.hs
+++ b/src/Control/Concurrent/Lifted/Instrument.hs
@@ -19,6 +19,7 @@ import Control.Exception.Lifted
 import Control.Monad.Base
 -- import Control.Monad.IO.Class
 import qualified GHC.Conc as GHC
+import Data.Time()
 import Data.Time.Clock
 
 data PerThread = PerThread