diff --git a/frappe/commands/site.py b/frappe/commands/site.py
index 3d71461739..853532a87f 100755
--- a/frappe/commands/site.py
+++ b/frappe/commands/site.py
@@ -40,6 +40,10 @@ def _new_site(db_name, site, mariadb_root_username=None, mariadb_root_password=N
 	reinstall=False, db_type=None):
 	"""Install a new Frappe site"""
 
+	if os.path.exists(site):
+		print('Site {0} already exists'.format(site))
+		sys.exit(1)
+
 	if not db_name:
 		db_name = '_' + hashlib.sha1(site.encode()).hexdigest()[:16]