diff --git a/src/cli/args.ts b/src/cli/args.ts
index 9b20a90..f4f6a44 100644
--- a/src/cli/args.ts
+++ b/src/cli/args.ts
@@ -51,9 +51,9 @@ export function parseArgs(argv: string[]): {
         continue;
       }
       if (arg.startsWith("-")) {
-        throw new Error(`Unknown option: ${arg}`);
+        throw new Error(`Unknown option: ${arg} Run \`cve-lite --help\` to see supported options.`);
       }
-      throw new Error(`Unexpected argument: ${arg}`);
+      throw new Error(`Unexpected argument: ${arg} Run \`cve-lite --help\` to see supported options.`);
     }
 
     return { command: "advisories-sync", options };
@@ -67,9 +67,9 @@ export function parseArgs(argv: string[]): {
         continue;
       }
       if (arg.startsWith("-")) {
-        throw new Error(`Unknown option: ${arg}`);
+        throw new Error(`Unknown option: ${arg} Run \`cve-lite --help\` to see supported options.`);
       }
-      throw new Error(`Unexpected argument: ${arg}`);
+      throw new Error(`Unexpected argument: ${arg} Run \`cve-lite --help\` to see supported options.`);
     }
     return { command: "install-skill", options };
   }
@@ -267,13 +267,13 @@ export function parseArgs(argv: string[]): {
       continue;
     }
     if (arg.startsWith("-")) {
-      throw new Error(`Unknown option: ${arg}`);
+      throw new Error(`Unknown option: ${arg} Run \`cve-lite --help\` to see supported options.`);
     }
     if (!projectArg) {
       projectArg = arg;
       continue;
     }
-    throw new Error(`Unexpected argument: ${arg}`);
+    throw new Error(`Unexpected argument: ${arg} Run \`cve-lite --help\` to see supported options.`);
   }
 
   if (options.cdx && options.report) {
diff --git a/src/index.ts b/src/index.ts
index 2c98f3a..89adf17 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -74,7 +74,9 @@ try {
 } catch (error) {
   const message = error instanceof Error ? error.message : String(error);
   console.error(chalk.red(`Error: ${message}`));
-  console.error(chalk.gray("Run `cve-lite --help` to see supported options."));
+  if (!message.includes("--help")) {
+    console.error(chalk.gray("Run `cve-lite --help` to see supported options."));
+  }
   process.exit(1);
 }