diff --git a/freer.cabal b/freer.cabal
index 0781778..5032345 100644
--- a/freer.cabal
+++ b/freer.cabal
@@ -75,6 +75,7 @@ test-suite test
   hs-source-dirs:   tests
   main-is:          Tests.hs
   other-modules:       Tests.Common
+                     , Tests.Coroutine
                      , Tests.Exception
                      , Tests.Fresh
                      , Tests.NonDetEff