diff --git a/cabal-install/tests/UnitTests/Distribution/Client/FileMonitor.hs b/cabal-install/tests/UnitTests/Distribution/Client/FileMonitor.hs
index 9bb7ed74c74d3a6856b56b42d6a834fecfd9eb58..dcd15fcd7d9874ec9945947073f7ca407f6043f5 100644
--- a/cabal-install/tests/UnitTests/Distribution/Client/FileMonitor.hs
+++ b/cabal-install/tests/UnitTests/Distribution/Client/FileMonitor.hs
@@ -241,7 +241,7 @@ testGlobNoChange =
     updateMonitor root monitor [monitorFileGlob "dir/good-*"] () ()
     (res, files) <- expectMonitorUnchanged root monitor ()
     res   @?= ()
-    files @?= [monitorFileGlob ("dir" </> "good-*")]
+    files @?= [monitorFileGlob "dir/good-*"]
 
 testGlobAddMatch :: Assertion
 testGlobAddMatch =