diff --git a/charts/soteria/templates/deployment.yaml b/charts/soteria/templates/deployment.yaml
index 230ace4..92dc322 100644
--- a/charts/soteria/templates/deployment.yaml
+++ b/charts/soteria/templates/deployment.yaml
@@ -68,7 +68,7 @@ spec:
             - name: TZ
               value: {{ .Values.timezone }}
             {{ if .Values.tracing.useDaemonset }}
-            - name: SOTERIA_TRACER__ENDPOINT
+            - name: soteria_tracer__endpoint
               value: $(JAEGER_AGENT_HOST):4317
             - name: JAEGER_AGENT_HOST
               valueFrom:
diff --git a/internal/config/config.go b/internal/config/config.go
index a3a40bc..cf9a900 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -78,7 +78,7 @@ func New() Config {
 	// load environment variables
 	if err := k.Load(env.Provider(Prefix, ".", func(s string) string {
 		return strings.ReplaceAll(strings.ToLower(
-			strings.TrimPrefix(s, Prefix)), "_", ".")
+			strings.TrimPrefix(s, Prefix)), "__", ".")
 	}), nil); err != nil {
 		log.Printf("error loading environment variables: %s", err)
 	}