diff --git a/src/struct_layout.rs b/src/struct_layout.rs
index 3847814..d07b129 100644
--- a/src/struct_layout.rs
+++ b/src/struct_layout.rs
@@ -209,7 +209,7 @@ impl StructLayout {
     }
 
     pub fn parse(dict: &mut impl TypeDict, struct_type: &DesugaredTypeTerm) -> Option <Self> {
-        let st = struct_type.clone().strip().param_normalize().sugar(dict);
+        let st = struct_type.clone().strip().sugar(dict).normalize();
         Self::parse_sugared(dict, st)
     }