diff --git a/src/args.rs b/src/args.rs
index cdca5c02b..0529d16f6 100644
--- a/src/args.rs
+++ b/src/args.rs
@@ -15,7 +15,7 @@ pub struct Args {
     #[clap(short, long)]
     pub parameters: Vec<String>,
 
-    // Model deviation tolerance
+    /// Model deviation tolerance
     #[clap[short, long]]
     pub tolerance: Option<f64>,
 }