diff --git a/src/recipe_functions/common.rs b/src/recipe_functions/common.rs
index 622a39e..4110335 100644
--- a/src/recipe_functions/common.rs
+++ b/src/recipe_functions/common.rs
@@ -126,7 +126,8 @@ pub fn check_allowed_change_mat_prefix(mat_id: Value) -> bool {
     let mat_id_i = mat_id.as_i64().unwrap();
 
     let mut exception_list = vec![
-        2101, 1031, 1, 9100, 8101, 8102, 8001, 8002, 8888, 8889, 200000, 201001, 201002, 100004, 0,
+        2101, 1031, 1, 9100, 8101, 8102, 8001, 8002, 8888, 8889, 200000, 200001, 201001, 201002,
+        100004, 0,
     ];
 
     // topping slot