diff --git a/example/web/README.md b/example/web/README.md
index 3a8b8ec25..50fbc0bb6 100644
--- a/example/web/README.md
+++ b/example/web/README.md
@@ -7,7 +7,7 @@ You need a Unix shell with `sed`, `tar` and `wget` utilities to run the provided
 ## Building tdweb NPM package
 
 * Install the 2.0.6 [emsdk](https://kripken.github.io/emscripten-site/docs/getting_started/downloads.html), which is known to work. Do not use the system-provided `emscripten` package, because it contains a too old emsdk version.
-* Install all `TDLib` build dependencies described in [Building](https://github.com/tdlib/td#building).
+* Install all `TDLib` build dependencies described in [Building](https://github.com/tdlib/td#building) and `sed`, `tar` and `wget` utilities.
 * Run `source ./emsdk_env.sh` from `emsdk` directory to set up the correct build environment.
 * On `macOS`, install the `coreutils` [Homebrew](https://brew.sh) package and replace `realpath` in scripts with `grealpath`:
 ```