diff --git a/languages.toml b/languages.toml
index dc4d10238186a..953a23fcdd850 100644
--- a/languages.toml
+++ b/languages.toml
@@ -875,7 +875,7 @@ name = "haskell"
 scope = "source.haskell"
 injection-regex = "haskell"
 file-types = ["hs", "hs-boot"]
-roots = ["Setup.hs", "stack.yaml", "*.cabal"]
+roots = ["Setup.hs", "stack.yaml", "cabal.project"]
 comment-token = "--"
 language-server = { command = "haskell-language-server-wrapper", args = ["--lsp"] }
 indent = { tab-width = 2, unit = "  " }