diff --git a/STYLE.md b/STYLE.md
index 0c4c17f98..2f814ae58 100644
--- a/STYLE.md
+++ b/STYLE.md
@@ -167,10 +167,14 @@ Follow Rust guidelines for the documentation comments:
 For internal types, implementing `From`, `TryFrom` or `FromStr` is discouraged.
 Instead, a `new()` function is recommended.
 
-For external types, use `Type::from()`, `Type::try_from()` or `Type::from_str()` directly
-rather than `into()`, `try_into()` or `parse()`.
+For external types, prefer using `Type::from()`, `Type::try_from()` or `Type::from_str()`
+over `into()`, `try_into()` or `parse()`.
 
 Calling `into()`, `try_into()` or `parse()`
 creates an indirection,
 which is hard to follow for people who are not familiar with Rust,
 or who are not using rust-analyzer.
+
+A notable exception is the Json-RPC API bindings,
+where the API types have `From` implementatons to and from the core types.
+Here, it is assumed to be clear enough which code is called.