diff --git a/app/origin_node.go b/app/origin_node.go
index 2cfa1b7700..cc7b85b10d 100644
--- a/app/origin_node.go
+++ b/app/origin_node.go
@@ -33,13 +33,13 @@ func originNodeForProcess(node report.NodeMetadata) OriginNode {
 		{Key: "PID", ValueMajor: node["pid"], ValueMinor: ""},
 		{Key: "Process name", ValueMajor: node["name"], ValueMinor: ""},
 	}
-	for key, human := range map[string]string{
-		"docker_id":   "Container ID",
-		"docker_name": "Container name",
-		"cgroup":      "cgroup",
+	for _, tuple := range []struct{ key, human string }{
+		{"docker_id", "Container ID"},
+		{"docker_name", "Container name"},
+		{"cgroup", "cgroup"},
 	} {
-		if val, ok := node[key]; ok {
-			rows = append(rows, report.Row{Key: human, ValueMajor: val, ValueMinor: ""})
+		if val, ok := node[tuple.key]; ok {
+			rows = append(rows, report.Row{Key: tuple.human, ValueMajor: val, ValueMinor: ""})
 		}
 	}
 	return OriginNode{