diff --git a/src/cli/cli.rs b/src/cli/cli.rs
index 8c331dd..9e9a027 100644
--- a/src/cli/cli.rs
+++ b/src/cli/cli.rs
@@ -53,7 +53,7 @@ pub(super) struct PlayOpts {
     #[command(flatten)]
     input: InputGroup,
     /// Set available notes ("a,b,c" for example)
-    #[arg(short, long)]
+    #[arg(short, long, value_delimiter = ',')]
     notes: Vec<String>,
     /// Set the signal expression (instrument) used to generate music samples
     #[arg(short, long, default_value = DEFAULT_INSTRUMENT)]