diff --git a/datetime-sb.cabal b/datetime-sb.cabal
index 44c3108c14262d4ea581df7db0241ac5e35f25ac..da0a7d4ff311b4dfd95c07be06340fdad96acdbe 100644
--- a/datetime-sb.cabal
+++ b/datetime-sb.cabal
@@ -34,6 +34,7 @@ test-suite test
   type: exitcode-stdio-1.0
   hs-source-dirs: test
   main-is: Suite.hs
+  other-modules: Data.DateTimeTest
   build-depends:
       datetime-sb