diff --git a/src/main.rs b/src/main.rs
index bc46fdd..fcb3930 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -248,6 +248,9 @@ enum Commands {
         /// Filter by file type (e.g., ts, py, rust)
         #[arg(short = 't', long)]
         file_type: Option<String>,
+        /// Show line numbers (always on, accepted for grep/rg compatibility)
+        #[arg(short = 'n', long)]
+        line_numbers: bool,
         /// Extra ripgrep arguments (e.g., -i, -A 3, -w, --glob)
         #[arg(trailing_var_arg = true, allow_hyphen_values = true)]
         extra_args: Vec<String>,
@@ -1089,6 +1092,7 @@ fn main() -> Result<()> {
             max,
             context_only,
             file_type,
+            line_numbers: _, // no-op: line numbers always enabled in grep_cmd::run
             extra_args,
         } => {
             grep_cmd::run(