diff --git a/tests/runtime/records/world.wit b/tests/runtime/records/world.wit
index 5699794a1..d85ed0a07 100644
--- a/tests/runtime/records/world.wit
+++ b/tests/runtime/records/world.wit
@@ -39,7 +39,7 @@ interface test {
   }
 
   roundtrip-flags3: func(a: flag8, b: flag16, c: flag32, d: flag64) ->
-    (f8: flag8, f16: flag16, f32: flag32, f64: flag64);
+    (f8: flag8, f16: flag16, %f32: flag32, %f64: flag64);
 
   record r1 { a: u8, b: f1 }
   roundtrip-record1: func(a: r1) -> r1;