diff --git a/crates/proc_macro_srv/src/tests/fixtures/test_serialize_proc_macro.txt b/crates/proc_macro_srv/src/tests/fixtures/test_serialize_proc_macro.txt
index ea34e688f73..fa581f11020 100644
--- a/crates/proc_macro_srv/src/tests/fixtures/test_serialize_proc_macro.txt
+++ b/crates/proc_macro_srv/src/tests/fixtures/test_serialize_proc_macro.txt
@@ -101,7 +101,7 @@ SUBTREE $
     PUNCH   : [alone] 4294967295
     IDENT   Serialize 4294967295
     IDENT   for 4294967295
-    IDENT   Foo 1
+    IDENT   Foo 4294967295
     SUBTREE {} 4294967295
       IDENT   fn 4294967295
       IDENT   serialize 4294967295