diff --git a/readref.c b/readref.c
index bb5919c..808d73e 100644
--- a/readref.c
+++ b/readref.c
@@ -139,21 +139,25 @@ int main()
                 }
                 printf("\n");
 
-                // XXX: loop throught multiple drefs
-                if ((payloadBytes - 1) % 8 == 0)
+                // continue if payloadBytes is valid (1 byte + 8 bytes each dref)
+                if ((payloadBytes - 1) % sizeof(struct dref_struct_out) == 0)
                 {
-                    memset(mqttTopic, 0, sizeof(mqttTopic));
-                    memset(mqttPayload, 0, sizeof(mqttPayload));
+                    // loop throught all provided drefs
+                    for (int i = 1; i < payloadBytes; i += sizeof(struct dref_struct_out))
+                    {
+                        memset(mqttTopic, 0, sizeof(mqttTopic));
+                        memset(mqttPayload, 0, sizeof(mqttPayload));
 
-                    struct dref_struct_out drefRead;
-                    memcpy(&drefRead, &payload[1], 8);
+                        struct dref_struct_out drefRead;
+                        memcpy(&drefRead, &payload[i], sizeof(struct dref_struct_out));
 
-                    printf("%d: %f\n", drefRead.dref_sender_index, drefRead.dref_flt_value);
+                        printf("%d: %f\n", drefRead.dref_sender_index, drefRead.dref_flt_value);
 
-                    sprintf(mqttTopic, "/xplane/rref/%d", drefRead.dref_sender_index);
-                    sprintf(mqttPayload, "%f", drefRead.dref_flt_value);
+                        sprintf(mqttTopic, "/xplane/rref/%d", drefRead.dref_sender_index);
+                        sprintf(mqttPayload, "%f", drefRead.dref_flt_value);
 
-                    sendMqtt(mqtt, mqttTopic, mqttPayload, strlen(mqttPayload));
+                        sendMqtt(mqtt, mqttTopic, mqttPayload, strlen(mqttPayload));
+                    }
                 }
                 else
                 {