diff --git a/doc/number.md b/doc/number.md
index 8226909a8..fc062a7fb 100644
--- a/doc/number.md
+++ b/doc/number.md
@@ -24,7 +24,7 @@ Creates a new instance of a `Napi::Number` object.
 Napi::Number(napi_env env, napi_value value);
 ```
 
- - `[in] env`: The `napi_env` environment in which to construct the `Napi::Nuber` object.
+ - `[in] env`: The `napi_env` environment in which to construct the `Napi::Number` object.
  - `[in] value`: The `napi_value` which is a handle for a JavaScript `Number`.
 
  Returns a non-empty `Napi::Number` object.