diff --git a/src/rcore/resolution.rs b/src/rcore/resolution.rs
index 3bba23c..a10d5e0 100644
--- a/src/rcore/resolution.rs
+++ b/src/rcore/resolution.rs
@@ -55,6 +55,7 @@ pub trait Resolver<'a, Ctx: Context<'a>>: 'a {
     fn resolve(self: Rc<Self>, address: Address) -> HashResolution<'a, Ctx>;
 }
 
+/// [`ResolverMap::resolve_map`].
 pub trait ResolverMap<'a, Ctx: Context<'a>>: Resolver<'a, Ctx> {
     /// Resolve the [Address], then map the [`HashResolutionResult`].
     fn resolve_map<T>(