diff --git a/exporter/kubernetes.go b/exporter/kubernetes.go
index eb3d1d3..d890f89 100644
--- a/exporter/kubernetes.go
+++ b/exporter/kubernetes.go
@@ -288,6 +288,11 @@ func (m *Metrics) GetUsageCost() {
 		name := pod.GetName()
 		namespace := pod.GetNamespace()
 
+		if _, ok := m.Pods[namespace+"/"+name]; !ok {
+			log.Debugf("could not find pod %s/%s when iterating through metrics, ignoring", namespace, name)
+			continue
+		}
+
 		me := m.Pods[namespace+"/"+name]
 		me.Usage.Cpu.Reset()
 		me.Usage.Memory.Reset()
diff --git a/exporter/metrics.go b/exporter/metrics.go
index e5f9deb..a0b7a57 100644
--- a/exporter/metrics.go
+++ b/exporter/metrics.go
@@ -66,6 +66,9 @@ func (m *Metrics) Describe(ch chan<- *prometheus.Desc) {
 
 func (m *Metrics) Collect(ch chan<- prometheus.Metric) {
 	m.podsMtx.Lock()
+	m.nodesMtx.Lock()
+	defer m.podsMtx.Unlock()
+	defer m.nodesMtx.Unlock()
 	m.GetUsageCost()
 
 	podLabels := []string{"pod", "namespace", "node", "type", "lifecycle"}
@@ -141,7 +144,6 @@ func (m *Metrics) Collect(ch chan<- prometheus.Metric) {
 			podLabelValues...,
 		)
 	}
-	m.podsMtx.Unlock()
 
 	nodeLabels := []string{"node", "region", "az", "type", "lifecycle"}
 	if len(m.addNodeLabels) > 0 {