diff --git a/README.md b/README.md
index b80d787..1726c06 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ A CLI tool to run multiple npm-scripts in parallel or sequential.
 
 - **Simplify.** The official `npm run-script` command cannot run multiple scripts, so if we want to run multiple scripts, it's redundant a bit. Let's shorten it by glob-like patterns.<br>
   Before: `npm run clean && npm run build:css && npm run build:js && npm run build:html`<br>
-  After: `npm-run-all clean build:*`
+  After: `npm-run-all clean 'build:*'`
 - **Cross platform.** We sometimes use `&` to run multiple command in parallel, but `cmd.exe` (`npm run-script` uses it by default) does not support the `&`. Half of Node.js users are using it on Windows, so the use of `&` might block contributions. `npm-run-all --parallel` works well on Windows as well.
 
 ## 💿 Installation
diff --git a/bin/npm-run-all/help.js b/bin/npm-run-all/help.js
index 0300bfe..81b30c2 100644
--- a/bin/npm-run-all/help.js
+++ b/bin/npm-run-all/help.js
@@ -58,8 +58,8 @@ Options:
     --silent   - - - - - - - - Set 'silent' to the log level of npm.
 
 Examples:
-    $ npm-run-all --serial clean lint build:**
-    $ npm-run-all --parallel watch:**
+    $ npm-run-all --serial clean lint 'build:**'
+    $ npm-run-all --parallel 'watch:**'
     $ npm-run-all clean lint --parallel "build:** -- --watch"
     $ npm-run-all -l -p start-server start-browser start-electron
 
diff --git a/bin/run-p/help.js b/bin/run-p/help.js
index 873568f..348f076 100644
--- a/bin/run-p/help.js
+++ b/bin/run-p/help.js
@@ -53,7 +53,7 @@ Options:
     For example, '-clns' equals to '-c -l -n -s'.
 
 Examples:
-    $ run-p watch:**
+    $ run-p 'watch:**'
     $ run-p --print-label "build:** -- --watch"
     $ run-p -sl "build:** -- --watch"
     $ run-p start-server start-browser start-electron
diff --git a/bin/run-s/help.js b/bin/run-s/help.js
index 6dfa6a1..87985b5 100644
--- a/bin/run-s/help.js
+++ b/bin/run-s/help.js
@@ -47,10 +47,10 @@ Options:
     For example, '-clns' equals to '-c -l -n -s'.
 
 Examples:
-    $ run-s build:**
-    $ run-s lint clean build:**
-    $ run-s --silent --print-name lint clean build:**
-    $ run-s -sn lint clean build:**
+    $ run-s 'build:**'
+    $ run-s lint clean 'build:**'
+    $ run-s --silent --print-name lint clean 'build:**'
+    $ run-s -sn lint clean 'build:**'
 
 See Also:
     https://github.com/mysticatea/npm-run-all#readme
diff --git a/docs/npm-run-all.md b/docs/npm-run-all.md
index c6f1aaa..446e647 100644
--- a/docs/npm-run-all.md
+++ b/docs/npm-run-all.md
@@ -44,8 +44,8 @@ Options:
     --silent   - - - - - - - - Set 'silent' to the log level of npm.
 
 Examples:
-    $ npm-run-all --serial clean lint build:**
-    $ npm-run-all --parallel watch:**
+    $ npm-run-all --serial clean lint 'build:**'
+    $ npm-run-all --parallel 'watch:**'
     $ npm-run-all clean lint --parallel "build:** -- --watch"
     $ npm-run-all -l -p start-server start-browser start-electron
 ```
@@ -121,14 +121,14 @@ We can use [glob]-like patterns to specify npm-scripts.
 The difference is one -- the separator is `:` instead of `/`.
 
 ```
-$ npm-run-all --parallel watch:*
+$ npm-run-all --parallel 'watch:*'
 ```
 
 In this case, runs sub scripts of `watch`. For example: `watch:html`, `watch:js`.
 But, doesn't run sub-sub scripts. For example: `watch:js:index`.
 
 ```
-$ npm-run-all --parallel watch:**
+$ npm-run-all --parallel 'watch:**'
 ```
 
 If we use a globstar `**`, runs both sub scripts and sub-sub scripts.
diff --git a/docs/run-p.md b/docs/run-p.md
index ce9d309..14a256a 100644
--- a/docs/run-p.md
+++ b/docs/run-p.md
@@ -42,7 +42,7 @@ Options:
     For example, '-clns' equals to '-c -l -n -s'.
 
 Examples:
-    $ run-p watch:**
+    $ run-p 'watch:**'
     $ run-p --print-label "build:** -- --watch"
     $ run-p -l "build:** -- --watch"
     $ run-p start-server start-browser start-electron
@@ -85,14 +85,14 @@ We can use [glob]-like patterns to specify npm-scripts.
 The difference is one -- the separator is `:` instead of `/`.
 
 ```
-$ run-p watch:*
+$ run-p 'watch:*'
 ```
 
 In this case, runs sub scripts of `watch`. For example: `watch:html`, `watch:js`.
 But, doesn't run sub-sub scripts. For example: `watch:js:index`.
 
 ```
-$ run-p watch:**
+$ run-p 'watch:**'
 ```
 
 If we use a globstar `**`, runs both sub scripts and sub-sub scripts.
diff --git a/docs/run-s.md b/docs/run-s.md
index cf62681..77a0ca1 100644
--- a/docs/run-s.md
+++ b/docs/run-s.md
@@ -36,10 +36,10 @@ Options:
     For example, '-clns' equals to '-c -l -n -s'.
 
 Examples:
-    $ run-s build:**
-    $ run-s lint clean build:**
-    $ run-s --silent --print-name lint clean build:**
-    $ run-s -sn lint clean build:**
+    $ run-s 'build:**'
+    $ run-s lint clean 'build:**'
+    $ run-s --silent --print-name lint clean 'build:**'
+    $ run-s -sn lint clean 'build:**'
 ```
 
 ### npm-scripts
@@ -76,14 +76,14 @@ We can use [glob]-like patterns to specify npm-scripts.
 The difference is one -- the separator is `:` instead of `/`.
 
 ```
-$ run-s build:*
+$ run-s 'build:*'
 ```
 
 In this case, runs sub scripts of `build`. For example: `build:html`, `build:js`.
 But, doesn't run sub-sub scripts. For example: `build:js:index`.
 
 ```
-$ run-s build:**
+$ run-s 'build:**'
 ```
 
 If we use a globstar `**`, runs both sub scripts and sub-sub scripts.