diff --git a/module/core/derive_tools/tests/inc/from_inner_variants_collisions.rs b/module/core/derive_tools/tests/inc/from_inner_variants_collisions.rs
index 22f6886d6e..e04334e1fc 100644
--- a/module/core/derive_tools/tests/inc/from_inner_variants_collisions.rs
+++ b/module/core/derive_tools/tests/inc/from_inner_variants_collisions.rs
@@ -1,5 +1,5 @@
-#[ allow( non_snake_case ) ]
-#[ allow( unused_imports ) ]
+#![ allow( non_snake_case ) ]
+#![ allow( unused_imports ) ]
 use super::*;
 
 pub mod core {}
diff --git a/module/core/derive_tools/tests/inc/from_inner_variants_generics.rs b/module/core/derive_tools/tests/inc/from_inner_variants_generics.rs
index 57e6d52114..3c30a7d406 100644
--- a/module/core/derive_tools/tests/inc/from_inner_variants_generics.rs
+++ b/module/core/derive_tools/tests/inc/from_inner_variants_generics.rs
@@ -5,7 +5,7 @@ use derive_tools::From;
 
 #[ derive( Debug, PartialEq, From ) ]
 // #[ debug ]
-pub enum GetData< 'a, T : ToString + ?Sized >
+pub enum GetData< 'a, T : ToString + ?Sized = str >
 {
   Nothing,
   FromT( &'a T ),
diff --git a/module/core/derive_tools/tests/inc/from_inner_variants_generics_where.rs b/module/core/derive_tools/tests/inc/from_inner_variants_generics_where.rs
index b1b87224dd..cfe6e82394 100644
--- a/module/core/derive_tools/tests/inc/from_inner_variants_generics_where.rs
+++ b/module/core/derive_tools/tests/inc/from_inner_variants_generics_where.rs
@@ -5,7 +5,7 @@ use derive_tools::From;
 
 #[ derive( Debug, PartialEq, From ) ]
 // #[ debug ]
-pub enum GetData< 'a, T >
+pub enum GetData< 'a, T = str >
 where
   T : ToString + ?Sized,
 {