diff --git a/integrations/promunifi/unifipoller/unifi.go b/integrations/promunifi/unifipoller/unifi.go
index 82fb040c..57fd8c51 100644
--- a/integrations/promunifi/unifipoller/unifi.go
+++ b/integrations/promunifi/unifipoller/unifi.go
@@ -115,6 +115,9 @@ func (u *UnifiPoller) CollectMetrics() (*Metrics, error) {
 // This is where we can manipuate the returned data or make arbitrary decisions.
 // This function currently adds parent device names to client metrics.
 func (u *UnifiPoller) AugmentMetrics(metrics *Metrics) error {
+	if metrics == nil || metrics.Devices == nil || metrics.Clients == nil {
+		return fmt.Errorf("nil metrics, augment impossible")
+	}
 	devices := make(map[string]string)
 	bssdIDs := make(map[string]string)
 	for _, r := range metrics.UAPs {