diff --git a/lang/src/lib.rs b/lang/src/lib.rs
index bf021a0..b959bb0 100644
--- a/lang/src/lib.rs
+++ b/lang/src/lib.rs
@@ -1034,6 +1034,7 @@ pub struct Types {
     tasks: Vec<Option<FTask>>,
 }
 
+// TODO: remove this
 trait TypeParser {
     fn tys(&mut self) -> &mut Types;
     fn ty_display(&self, of: ty::Id) -> ty::Display;
@@ -1043,6 +1044,7 @@ trait TypeParser {
     fn eval_global(&mut self, file: Module, name: Ident, expr: &Expr) -> ty::Id;
     fn infer_type(&mut self, expr: &Expr) -> ty::Id;
     fn error(&self, file: Module, pos: Pos, msg: impl Display) -> ty::Id;
+    fn warn(&self, file: Module, pos: Pos, msg: impl Display) -> ty::Id;
 
     fn find_type(
         &mut self,
@@ -1118,7 +1120,7 @@ trait TypeParser {
             };
 
             if let Err(proper_case) = self.tys().case(ty)(f.ident_str(name)) {
-                self.error(
+                self.warn(
                     from_file,
                     pos,
                     format_args!(
diff --git a/lang/src/son.rs b/lang/src/son.rs
index 707d46b..87fa11c 100644
--- a/lang/src/son.rs
+++ b/lang/src/son.rs
@@ -4969,7 +4969,7 @@ impl<'a> Codegen<'a> {
 
     #[track_caller]
     fn warn(&self, pos: Pos, msg: impl core::fmt::Display) {
-        let mut buf = self.errors.borrow_mut();
+        let mut buf = self.warnings.borrow_mut();
         write!(buf, "(W) {}", self.file().report(pos, msg)).unwrap();
     }
 
@@ -5072,6 +5072,12 @@ impl TypeParser for Codegen<'_> {
         ty::Id::NEVER
     }
 
+    fn warn(&self, file: Module, pos: Pos, msg: impl Display) -> ty::Id {
+        let mut buf = self.warnings.borrow_mut();
+        write!(buf, "(W) {}", self.files[file.index()].report(pos, msg)).unwrap();
+        ty::Id::NEVER
+    }
+
     fn find_local_ty(&mut self, ident: Ident) -> Option<ty::Id> {
         self.ci.scope.vars.iter().rfind(|v| (v.id == ident && v.value() == NEVER)).map(|v| v.ty)
     }