diff --git a/crates/plotnik-langs/src/lib.rs b/crates/plotnik-langs/src/lib.rs
index 4075c20d..3438616d 100644
--- a/crates/plotnik-langs/src/lib.rs
+++ b/crates/plotnik-langs/src/lib.rs
@@ -276,7 +276,6 @@ mod tests {
     }
 
     #[test]
-    #[ignore] // TODO: investigate why we always obtain empty subtypes
     #[cfg(feature = "lang-javascript")]
     fn supertype_via_lang_trait() {
         let lang = javascript();