diff --git a/package.json b/package.json
index 9157de9c..9d9cf157 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "wrap-ansi": "^4.0.0"
   },
   "devDependencies": {
-    "@oclif/config": "^1.7.3",
+    "@oclif/config": "^1.7.4",
     "@oclif/dev-cli": "^1.17.0",
     "@oclif/errors": "^1.2.0",
     "@oclif/plugin-legacy": "^1.1.0",
diff --git a/src/command.ts b/src/command.ts
index 1870ab92..43937df7 100644
--- a/src/command.ts
+++ b/src/command.ts
@@ -115,7 +115,13 @@ export default class CommandHelp {
     let body = renderList(flags.map(flag => {
       const label = []
       if (flag.char) label.push(`-${flag.char[0]}`)
-      if (flag.name) label.push(`--${flag.name.trim()}`)
+      if (flag.name) {
+        if (flag.type === 'boolean' && flag.allowNo) {
+          label.push(`--[no-]${flag.name.trim()}`)
+        } else {
+          label.push(`--${flag.name.trim()}`)
+        }
+      }
       let left = label.join(', ')
       if (flag.type === 'option') {
         let value = flag.helpValue || flag.name
diff --git a/test/command.test.ts b/test/command.test.ts
index cfa4cced..9ee9324f 100644
--- a/test/command.test.ts
+++ b/test/command.test.ts
@@ -187,6 +187,19 @@ OPTIONS
 ARGUMENTS
   ARG1  (option1|option2) Show the options`))
 
+  test
+  .commandHelp(class extends Command {
+    static id = 'apps:create'
+    static flags = {
+      opt: flags.boolean({allowNo: true})
+    }
+  })
+  .it('outputs with possible options', ctx => expect(ctx.commandHelp).to.equal(`USAGE
+  $ oclif apps:create
+
+OPTIONS
+  --[no-]opt`))
+
   // class AppsCreate3 extends Command {
   //   static id = 'apps:create'
   //   static flags = {
diff --git a/yarn.lock b/yarn.lock
index 668c5e9a..435da19c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -71,9 +71,9 @@
     debug "^3.1.0"
     semver "^5.5.0"
 
-"@oclif/config@^1.7.0", "@oclif/config@^1.7.3":
-  version "1.7.3"
-  resolved "https://registry.yarnpkg.com/@oclif/config/-/config-1.7.3.tgz#b666b581a9b080419d5f12a2cb618a2c4c6bced0"
+"@oclif/config@^1.7.0", "@oclif/config@^1.7.4":
+  version "1.7.4"
+  resolved "https://registry.yarnpkg.com/@oclif/config/-/config-1.7.4.tgz#5b7f779534a339de8c62a863b12f5740b15c41f5"
   dependencies:
     debug "^3.1.0"
     tslib "^1.9.3"
@@ -109,8 +109,8 @@
   resolved "https://registry.yarnpkg.com/@oclif/linewrap/-/linewrap-1.0.0.tgz#aedcb64b479d4db7be24196384897b5000901d91"
 
 "@oclif/parser@^3.6.0":
-  version "3.6.0"
-  resolved "https://registry.yarnpkg.com/@oclif/parser/-/parser-3.6.0.tgz#8d0b4c3e012aa1f0d59a6936b3dedec318b11a6d"
+  version "3.6.1"
+  resolved "https://registry.yarnpkg.com/@oclif/parser/-/parser-3.6.1.tgz#dd0ad29d9178d75a2de30314874a6167675925ed"
   dependencies:
     "@oclif/linewrap" "^1.0.0"
     chalk "^2.4.1"