diff --git a/wcsinst/wcsinstd/deploy.py b/wcsinst/wcsinstd/deploy.py
index c9faaef..ba13c68 100644
--- a/wcsinst/wcsinstd/deploy.py
+++ b/wcsinst/wcsinstd/deploy.py
@@ -120,9 +120,9 @@ class DeployInstance(object):
         params = []
         for param in ('dbname', 'user', 'password', 'host', 'port'):
             if wcs_cfg.get('postgresql').get(param):
-                params.append(param)
+                params.append('--' + param)
                 params.append(wcs_cfg.get('postgresql').get(param))
-        os.system('%s convertsql %s %s' % (app_settings.WCSCTL_SCRIPT, ' '.join(params), self.domain))
+        os.system('%s convert-to-sql %s %s' % (app_settings.WCSCTL_SCRIPT, ' '.join(params), self.domain))
 
     def make_sso_config(self, wcs_cfg):
         has_idff = False