diff --git a/docs/sources/reference/builder.md b/docs/sources/reference/builder.md
index 43e88c766d..3931bb28a5 100644
--- a/docs/sources/reference/builder.md
+++ b/docs/sources/reference/builder.md
@@ -801,8 +801,8 @@ and for any `RUN`, `CMD` and `ENTRYPOINT` instructions that follow it in the
 
     WORKDIR /path/to/workdir
 
-The `WORKDIR` instruction sets the working directory for any `RUN`, `CMD` and
-`ENTRYPOINT` instructions that follow it in the `Dockerfile`.
+The `WORKDIR` instruction sets the working directory for any `RUN`, `CMD`,
+`ENTRYPOINT`, `COPY` and `ADD` instructions that follow it in the `Dockerfile`.
 
 It can be used multiple times in the one `Dockerfile`. If a relative path
 is provided, it will be relative to the path of the previous `WORKDIR`