diff --git a/compiler/jstypes.nim b/compiler/jstypes.nim
index 367c173ea7..611f50eafc 100644
--- a/compiler/jstypes.nim
+++ b/compiler/jstypes.nim
@@ -116,7 +116,7 @@ proc genEnumInfo(p: PProc, typ: PType, name: Rope) =
          [name, genTypeInfo(p, typ.sons[0])])
 
 proc genTypeInfo(p: PProc, typ: PType): Rope =
-  let t = typ.skipTypes({tyGenericInst})
+  let t = typ.skipTypes({tyGenericInst, tyDistinct})
   result = "NTI$1" % [rope(t.id)]
   if containsOrIncl(p.g.typeInfoGenerated, t.id): return
   case t.kind