diff --git a/test/prim.test.did b/test/prim.test.did
index eff4c832f..9e832cde7 100644
--- a/test/prim.test.did
+++ b/test/prim.test.did
@@ -195,5 +195,6 @@ assert blob "DIDL\00\01\71\03\e2\28\a1" !: (reserved) "reserved from invalid utf
 assert blob "DIDL\00\01\6f"                      !: (empty) "cannot decode empty type";
 assert blob "DIDL\01\6e\6f\01\00\00" == "(null)"  : (opt empty) "okay to decode non-empty value";
 
+
 assert blob "DIDL\00\0a\7f\7e\7d\7c\7f\70\7f\7b\7a\79\01\2a\2a\2a\2a\00\2a\00\00\00"
     == "(null, true, 42, 42, null, null, null, 42, 42, 42)" : (null, bool, nat, int, null, reserved, null, nat8, nat16, nat32) "multiple arguments";
diff --git a/test/subtypes.test.did b/test/subtypes.test.did
index 973f0207f..9db696602 100644
--- a/test/subtypes.test.did
+++ b/test/subtypes.test.did
@@ -124,8 +124,8 @@ assert blob "DIDL\02\6a\00\01\01\00\6b\01\00\7e\01\00\01\01\00\01m"
 
 assert blob "DIDL\02\6a\00\01\01\00\6c\01\00\01\01\00\01\01\00\01m"
    == "(opt func \"aaaaa-aa\".m)" : (opt func () -> (EmptyRecord)) "(µ record) <: (µ record)";
-//assert blob "DIDL\02\6a\00\01\01\00\6c\01\00\01\01\00\01\01\00\01m"
-//   == "(null)" : (opt func () -> (empty)) "(µ record) </: empty";
+assert blob "DIDL\02\6a\00\01\01\00\6c\01\00\01\01\00\01\01\00\01m"
+   == "(null)" : (opt func () -> (empty)) "(µ record) </: empty";
 assert blob "DIDL\01\6a\00\01\6f\00\01\00\01\01\00\01m"
    == "(opt func \"aaaaa-aa\".m)" : (opt func () -> (EmptyRecord)) "empty <: (µ record)";
 assert blob "DIDL\02\6a\00\01\01\00\6c\01\00\01\01\00\01\01\00\01m"