Fix duplicate words in the docs

1 files changed, 1 insertions, 1 deletions

diff --git a/doc/rust.md b/doc/rust.md
index 787d0191b09..592bdcf3a3d 100644
--- a/doc/rust.md
+++ b/doc/rust.md
@@ -1297,7 +1297,7 @@ with matching types and type parameter counts.
 
 An implementation can take type parameters,
 which can be different from the type parameters taken by the trait it implements.
-Implementation parameters are written after after the `impl` keyword.
+Implementation parameters are written after the `impl` keyword.
 
 ~~~~
 # trait Seq<T> { }