diff --git a/grammar.js b/grammar.js
index 0b8302b..3e509f9 100644
--- a/grammar.js
+++ b/grammar.js
@@ -26,9 +26,6 @@ module.exports = grammar({
       $.fixity,
     )),
 
-    identifier : $ => /[a-zA-Z_]\w*/,
-    symbol     : $ => /[!@#$%^&*-+=<>,./?{}\\|`~'\"∧∨⊙×≅]+/,
-
     comment : $ => token(seq('--', /.*/)),
 
     section : $ => seq(
@@ -60,7 +57,7 @@ module.exports = grammar({
       ')'
     ),
 
-    star   : $ => "★",
+    star   : $ => choice("★", "⋆"),
     square : $ => choice('□', '[]'),
     sort   : $ => choice($.star, $.square, seq($.square, /[0-9₀₁₂₃₄₅₆₇₈₉]+/)),
 
@@ -177,5 +174,8 @@ module.exports = grammar({
 
     command : $ => '@include',
 
+    identifier : $ => /[a-zA-Z_]\w*/,
+    symbol     : $ => /[!@#$%^&*-+=<>,./?{}\\|`~'\"∧∨⊙×≅]+/,
+
   }
 });
diff --git a/test/corpus/sorts.txt b/test/corpus/sorts.txt
index c6e28a0..0386c3b 100644
--- a/test/corpus/sorts.txt
+++ b/test/corpus/sorts.txt
@@ -2,7 +2,7 @@
 Sorts
 =====
 
-def foo (A : ★) (B : □) (C : □₁) (D : []) (E : []1) (F : □1) (G : □₁₂₃) := A;
+def foo (A : ★) (B : □) (C : □₁) (D : []) (E : []1) (F : □1) (G : □₁₂₃) (H : ⋆) := A;
 
 ---
 
@@ -72,6 +72,15 @@ def foo (A : ★) (B : □) (C : □₁) (D : []) (E : []1) (F : □1) (G : □
                   (term
                     (sort
                       (square))))))))
+        (param_block
+          (identifier)
+          (expr
+            (app_term
+              (binex
+                (app
+                  (term
+                    (sort
+                      (star))))))))		      
         (expr
           (app_term
             (binex