diff --git a/lib/puppet/provider/postgresql_psql/ruby.rb b/lib/puppet/provider/postgresql_psql/ruby.rb
index 715d9b5273..1cfbbca094 100644
--- a/lib/puppet/provider/postgresql_psql/ruby.rb
+++ b/lib/puppet/provider/postgresql_psql/ruby.rb
@@ -15,7 +15,7 @@ def run_sql_command(sql)
 
     command = [resource[:psql_path]]
     command.push('-d', resource[:db]) if resource[:db]
-    command.push('-p', resource[:port]) if resource[:port]
+    command.push('-p', resource[:port].to_s) if resource[:port]
     command.push('-t', '-X', '-c', sql)
 
     environment = fetch_environment