diff --git a/include/meter.h b/include/meter.h
index e4d92e8..f5e3f7c 100644
--- a/include/meter.h
+++ b/include/meter.h
@@ -54,8 +54,8 @@
 
 typedef union reading_id {
 	obis_id_t obis;
-	/* char *string; */
-	/* char *uuid; */
+	char *string;
+	char *uuid;
 } reading_id_t;
 
 typedef struct reading {