diff --git a/datetime/README.md b/datetime/README.md
index 470aba6513..6317ff87eb 100644
--- a/datetime/README.md
+++ b/datetime/README.md
@@ -1,6 +1,6 @@
 # datetime
 
-Simple helper to help parse date strings into `Date`, with additionnal functions.
+Simple helper to help parse date strings into `Date`, with additional functions.
 
 ## Usage
 
diff --git a/http/README.md b/http/README.md
index 0f53dc76b5..d359f417a3 100644
--- a/http/README.md
+++ b/http/README.md
@@ -4,7 +4,7 @@ A framework for creating HTTP/HTTPS server.
 
 ## Cookie
 
-Helper to manipulate `Cookie` throught `ServerRequest` and `Response`.
+Helper to manipulate `Cookie` through `ServerRequest` and `Response`.
 
 ```ts
 import { ServerRequest } from "https://deno.land/std/http/server.ts";
@@ -72,6 +72,6 @@ A small program for serving local files over HTTP.
 
 Add the following to your `.bash_profile`
 
-```
+```sh
 alias file_server="deno run --allow-net https://deno.land/std/http/file_server.ts"
 ```
diff --git a/http/file_server.ts b/http/file_server.ts
index 5ef891aa84..54979bf3e7 100755
--- a/http/file_server.ts
+++ b/http/file_server.ts
@@ -86,16 +86,16 @@ function modeToString(isDir: boolean, maybeMode: number | null): string {
 }
 
 function fileLenToString(len: number): string {
-  const multipler = 1024;
+  const multiplier = 1024;
   let base = 1;
   const suffix = ["B", "K", "M", "G", "T"];
   let suffixIndex = 0;
 
-  while (base * multipler < len) {
+  while (base * multiplier < len) {
     if (suffixIndex >= suffix.length - 1) {
       break;
     }
-    base *= multipler;
+    base *= multiplier;
     suffixIndex++;
   }