diff --git a/src/commands/install.ts b/src/commands/install.ts
index 01754e2..77dccaf 100644
--- a/src/commands/install.ts
+++ b/src/commands/install.ts
@@ -46,6 +46,12 @@ export default class Install {
 			const db = new lowdb.Low(adapter);
 
 			await db.read();
+
+			if (db.data.pkgs.find((val) => val.name === getWahInfo.name)) {
+				console.error(chalk.red.bold`Package %s is already installed!`, getWahInfo.name);
+				process.exit(1);
+			}
+
 			db.data.pkgs.push({
 				name: getWahInfo.name,
 				version: `${getWahInfo.version.major}.${getWahInfo.version.minor}.${getWahInfo.version.patch}-${getWahInfo.version.rel}`,