diff --git a/src/compiler.bbb b/src/compiler.bbb
index b2825a9..c6f0187 100644
--- a/src/compiler.bbb
+++ b/src/compiler.bbb
@@ -7170,12 +7170,55 @@ parse = fn (module: &Module) void
 
                         if (is_generic)
                         {
+                            while (1)
+                            {
+                                skip_space(module);
+
+                                if (consume_character_if_match(module, right_bracket))
+                                {
+                                    break;
+                                }
+
+                                >argument_name = arena_duplicate_string(module.arena, parse_identifier(module));
+
+                                skip_space(module);
+                                
+                                >has_value = consume_character_if_match(module, ':');
+
+                                >constant_argument_index = constant_argument_count;
+
+                                if (has_value)
+                                {
+                                    #trap();
+                                }
+                                else
+                                {
+                                    >ty = new_type(module, {
+                                        .id = .unresolved,
+                                        .name = argument_name,
+                                        .scope = &macro_declaration.scope,
+                                        zero,
+                                    });
+
+                                    constant_argument_buffer[constant_argument_index] = {
+                                        .name = argument_name,
+                                        .content = {
+                                            .type = ty,
+                                        },
+                                        .id = .type,
+                                    };
+                                }
+
+                                constant_argument_count += 1;
+                            }
+
+                            skip_space(module);
+
                             // END OF SCOPE
                             if (constant_argument_count == 0)
                             {
                                 report_error();
                             }
-                            #trap();
                         }
                         else
                         {
@@ -16929,6 +16972,7 @@ names: [_][]u8 =
     "slice_array_literal",
     "slice_only_start",
     "basic_macro",
+    "generic_macro",
 ];
 
 [export] main = fn [cc(c)] (argument_count: u32, argv: &&u8, envp: &&u8) s32