...

src/lang/Nub.Lang/Frontend/Lexing/Lexer.cs

@@ -18,6 +18,7 @@ public class Lexer
         ["alloc"] = Symbol.Alloc,
         ["struct"] = Symbol.Struct,
         ["let"] = Symbol.Let,
+        ["calls"] = Symbol.Calls,
     };
 
     private static readonly Dictionary<string, Modifier> Modifiers = new()