diff --git a/docs/en/formats/capnproto.rst b/docs/en/formats/capnproto.rst
index a6061e1cc0a..d7ad7ba44db 100644
--- a/docs/en/formats/capnproto.rst
+++ b/docs/en/formats/capnproto.rst
@@ -16,6 +16,6 @@ When the schema file looks like:
     c @1 :Uint64;
   }
 
-Deserialisation is almost as efficient as the binary rows format, with typically zero allocation overhead per message.
+Deserialization is almost as efficient as the binary rows format, with typically zero allocation overhead per message.
 
-You can use this format as an efficient exchange message format in your data processing pipeline.
\ No newline at end of file
+You can use this format as an efficient exchange message format in your data processing pipeline.