diff --git a/bin/cli b/bin/cli
index 4eee09f70..f618b24be 100755
--- a/bin/cli
+++ b/bin/cli
@@ -4,8 +4,9 @@
  * Module dependencies.
  */
 
-// const util = require('./util');
 const program = require('./commander');
+const {head, map} = require('lodash');
+const Matcher = require('did-you-mean');
 
 program
   .command('serve', 'serve the application')
@@ -23,6 +24,21 @@ program
   )
   .parse(process.argv);
 
+// If the command wasn't found, output help.
+const cmds = map(program.commands, '_name');
+const cmd = head(program.args);
+if (!cmds.includes(cmd)) {
+  const m = new Matcher(cmds);
+  const similarCMDs = m.list(cmd);
+
+  console.error(`cli '${cmd}' is not a talk cli command. See 'cli --help'.`);
+  if (similarCMDs.length > 0) {
+    const sc = similarCMDs.map(({value}) => `\t${value}\n`).join('');
+    console.error(`\nThe most similar commands are\n${sc}`);
+  }
+  process.exit(1);
+}
+
 /**
  * When this provess exists, check to see if we have a running command, if we do
  * check to see if it is still running. If it is, then kill it with a SIGINT
@@ -31,6 +47,8 @@ program
  */
 process.once('exit', () => {
   if (
+
+    // program.runningCommand &&
     program.runningCommand.killed === false &&
     program.runningCommand.exitCode === null
   ) {
diff --git a/package.json b/package.json
index d17bb197d..07a674de6 100644
--- a/package.json
+++ b/package.json
@@ -90,6 +90,7 @@
     "dataloader": "^1.3.0",
     "debug": "^3.0.1",
     "dialog-polyfill": "^0.4.9",
+    "did-you-mean": "^0.0.1",
     "dotenv": "^4.0.0",
     "ejs": "^2.5.7",
     "env-rewrite": "^1.0.2",
diff --git a/yarn.lock b/yarn.lock
index b88833b81..a70049537 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2269,6 +2269,13 @@ dialog-polyfill@^0.4.9:
   version "0.4.9"
   resolved "https://registry.yarnpkg.com/dialog-polyfill/-/dialog-polyfill-0.4.9.tgz#c690b3727c3d82e0f947bd5b910b32af8a2ef57d"
 
+did-you-mean@^0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/did-you-mean/-/did-you-mean-0.0.1.tgz#8851ce82407903cb62c12cb6ad4f676921ccdec3"
+  dependencies:
+    levenshtein "*"
+    underscore "*"
+
 diff@3.2.0, diff@^3.1.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/diff/-/diff-3.2.0.tgz#c9ce393a4b7cbd0b058a725c93df299027868ff9"
@@ -4452,6 +4459,10 @@ lcid@^1.0.0:
   dependencies:
     invert-kv "^1.0.0"
 
+levenshtein@*:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/levenshtein/-/levenshtein-1.0.5.tgz#3911737a9cb56da345d008f55782c6f138979ba3"
+
 levn@^0.3.0, levn@~0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/levn/-/levn-0.3.0.tgz#3b09924edf9f083c0490fdd4c0bc4421e04764ee"
@@ -7715,7 +7726,7 @@ undefsafe@0.0.3:
   version "0.0.3"
   resolved "https://registry.yarnpkg.com/undefsafe/-/undefsafe-0.0.3.tgz#ecca3a03e56b9af17385baac812ac83b994a962f"
 
-underscore@>=1.3.1:
+underscore@*, underscore@>=1.3.1:
   version "1.8.3"
   resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.8.3.tgz#4f3fb53b106e6097fcf9cb4109f2a5e9bdfa5022"