diff --git a/README.md b/README.md
index 09f9046..0b43b2b 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@ cargo install pulsarss
 ## Launch
 
 ``` bash
-pulsarss --source https://path/to/feed.rss
+pulsarss --source https://path/to/feed.rss --index
 ```
 
 ### Options
@@ -28,7 +28,7 @@ pulsarss --source https://path/to/feed.rss
 * `source`, `s` - RSS feed source (required)
 * `target`, `t` - Destination directory (`public` by default)
 * `update`, `u` - Update timeout in seconds (`60` by default)
-* `index`, `i` - Generate `index.gmi` file (`true` by default)
+* `index`, `i` - Generate `index.gmi` files (`false` by default)
 * `limit`, `l` - Limit channel items (unlimited by default)
 * `output`, `o` - Print output (`dw` by default):
   * `d` - debug
@@ -49,7 +49,7 @@ After=network.target
 Type=simple
 User=pulsarss
 Group=pulsarss
-ExecStart=pulsarss -s https://path/to/feed.rss
+ExecStart=pulsarss -is https://path/to/feed.rss
 
 [Install]
 WantedBy=multi-user.target
diff --git a/src/argument.rs b/src/argument.rs
index a56b828..751ff93 100644
--- a/src/argument.rs
+++ b/src/argument.rs
@@ -3,8 +3,8 @@ use clap::Parser;
 #[derive(Parser, Debug)]
 #[command(version, about, long_about = None)]
 pub struct Argument {
-    /// Generate `index.gmi` file (`true` by default)
-    #[arg(short, long, default_value_t = true)]
+    /// Generate `index.gmi` files (`false` by default)
+    #[arg(short, long, default_value_t = false)]
     pub index: bool,
 
     /// Limit channel items (unlimited by default)