diff --git a/README.md b/README.md
index 69ffe6dde20a7..d6f5154cd02af 100644
--- a/README.md
+++ b/README.md
@@ -2377,7 +2377,7 @@ Enabled by default.
 
 ```toml
 [tool.ruff]
-respect_gitignore = false
+respect-gitignore = false
 ```
 
 ---
diff --git a/src/settings/options.rs b/src/settings/options.rs
index 367d288944ab7..d25e9a58006e1 100644
--- a/src/settings/options.rs
+++ b/src/settings/options.rs
@@ -285,7 +285,7 @@ pub struct Options {
         default = "true",
         value_type = "bool",
         example = r#"
-            respect_gitignore = false
+            respect-gitignore = false
         "#
     )]
     /// Whether to automatically exclude files that are ignored by `.ignore`,