diff --git a/src/cli.rs b/src/cli.rs
index 35dd1de..c2fb810 100644
--- a/src/cli.rs
+++ b/src/cli.rs
@@ -6,7 +6,7 @@ use openssl::{
     bn::{BigNum, MsbOption},
     ec::{EcGroup, EcPoint},
 };
-use serde_json::from_reader;
+use serde_json::{from_reader, from_str};
 
 use crate::{bink1998, crypto::initialize_elliptic_curve};
 
@@ -35,8 +35,8 @@ pub struct Options {
     num_keys: i32,
 
     /// Specify which keys file to load
-    #[arg(short = 'f', long = "file", default_value = "keys.json")]
-    keys_filename: String,
+    #[arg(short = 'f', long = "file")]
+    keys_filename: Option<String>,
 
     /// Installation ID used to generate confirmation ID
     #[arg(short, long)]
@@ -137,21 +137,28 @@ impl Cli {
     }
 
     fn validate_command_line(options: &mut Options) -> Result<serde_json::Value> {
-        if options.verbose {
-            println!("Loading keys file {}", options.keys_filename);
-        }
+        let keys = {
+            if let Some(filename) = &options.keys_filename {
+                if options.verbose {
+                    println!("Loading keys file {}", filename);
+                }
 
-        let keys = Self::load_json(&options.keys_filename)?;
+                let keys = Self::load_json(filename)?;
 
-        if options.verbose {
-            println!("Loaded keys from {} successfully", options.keys_filename);
-        }
+                if options.verbose {
+                    println!("Loaded keys from {} successfully", filename);
+                }
+
+                keys
+            } else {
+                from_str(std::include_str!("../keys.json"))?
+            }
+        };
 
         if options.list {
-            let products = keys["Products"].as_object().ok_or(anyhow!(
-                "`Products` object not found in {}",
-                options.keys_filename
-            ))?;
+            let products = keys["Products"]
+                .as_object()
+                .ok_or(anyhow!("`Products` object not found in keys",))?;
             for (key, value) in products.iter() {
                 println!("{}: {}", key, value["BINK"]);
             }