diff --git a/pool-agent/cmd/agent.go b/pool-agent/cmd/agent.go
index c73badb..6015242 100644
--- a/pool-agent/cmd/agent.go
+++ b/pool-agent/cmd/agent.go
@@ -52,6 +52,8 @@ func newAgent(ctx context.Context) (*Agent, error) {
 	if err != nil {
 		return nil, err
 	}
+	source.Server = ""
+
 	c, err := lxd.ConnectLXDUnixWithContext(ctx, "", &lxd.ConnectionArgs{})
 	if err != nil {
 		return nil, fmt.Errorf("connect lxd: %w", err)
@@ -110,6 +112,7 @@ func (a *Agent) reloadConfig() error {
 			return fmt.Errorf("parse image alias: %w", err)
 		}
 		a.InstanceSource = *source
+		a.InstanceSource.Server = ""
 		a.ImageAlias = conf.ImageAlias
 	}
 	a.ResourceTypesMap = conf.ResourceTypesMap