diff --git a/packages/hix/lib/Hix/Ghci.hs b/packages/hix/lib/Hix/Ghci.hs
index 4295db06..31a168b6 100644
--- a/packages/hix/lib/Hix/Ghci.hs
+++ b/packages/hix/lib/Hix/Ghci.hs
@@ -190,7 +190,7 @@ searchPathArg :: NonEmpty (Path Abs Dir) -> Text
 searchPathArg paths =
   [exon|-i#{colonSeparated}|]
   where
-    colonSeparated = Text.intercalate ":" (pathText <$> toList paths)
+    colonSeparated = Text.intercalate ":" (Text.dropWhileEnd (== '/') . pathText <$> toList paths)
 
 ghciCmdline ::
   GhciTest ->
diff --git a/packages/hix/test/Hix/Test/GhciTest.hs b/packages/hix/test/Hix/Test/GhciTest.hs
index fd11289c..a99e7ee7 100644
--- a/packages/hix/test/Hix/Test/GhciTest.hs
+++ b/packages/hix/test/Hix/Test/GhciTest.hs
@@ -147,7 +147,7 @@ options =
 
 searchPath :: Text -> [Text] -> Text
 searchPath dir subs =
-  Text.intercalate ":" [[exon|#{dir}packages/#{sub}/|] | sub <- subs]
+  Text.intercalate ":" [[exon|#{dir}packages/#{sub}|] | sub <- subs]
 
 ghcidTarget ::
   Path Abs Dir ->
diff --git a/test/internal/hackage.nix b/test/internal/hackage.nix
index aed02fda..8a0014e0 100644
--- a/test/internal/hackage.nix
+++ b/test/internal/hackage.nix
@@ -14,6 +14,10 @@ in {
     describe 'Build the integration executable'
     step nix build path:$hix_dir#env.integration-exe.integration
 
+    describe 'Run the integration executable with --help'
+    output_ignore
+    step nix run path:$hix_dir#integration-hackage -- --help
+
     output_ignore
     error_ignore
     step_develop which cabal