diff --git a/src/service/poc_mobile.proto b/src/service/poc_mobile.proto
index 034d58ac..11171457 100644
--- a/src/service/poc_mobile.proto
+++ b/src/service/poc_mobile.proto
@@ -335,10 +335,10 @@ message radio_reward {
   // value is 0.0 to 1.0 multiplied by 1000
   uint32 speedtest_multiplier = 9;
   // list of all boosted hexes covered by this radio
-  boosted_hexes boosted_hexes = 10;
+  repeated boosted_hex boosted_hexes = 10;
 }
 
-message boosted_hexes {
+message boosted_hex {
   // the multiplier applied to this hex and paid for by the relevant service
   // provider value is 0.0 to 1.0 multiplied by 1000
   uint32 multiplier = 1;