diff --git a/lib.rs b/lib.rs
index c935894..1fc0088 100644
--- a/lib.rs
+++ b/lib.rs
@@ -1697,7 +1697,9 @@ impl_array!(
     0x40000, 0x60000, 0x80000, 0x10_0000
 );
 
-trait ToSmallVec<A:Array> {
+/// Convenience trait for constructing a `SmallVec`
+pub trait ToSmallVec<A:Array> {
+    /// Construct a new `SmallVec` from a slice.
     fn to_smallvec(&self) -> SmallVec<A>;
 }