diff --git a/mission/controller/controllerdefinitions/AcsCtrlDefinitions.h b/mission/controller/controllerdefinitions/AcsCtrlDefinitions.h
index e8fb2b53..d25d41a3 100644
--- a/mission/controller/controllerdefinitions/AcsCtrlDefinitions.h
+++ b/mission/controller/controllerdefinitions/AcsCtrlDefinitions.h
@@ -86,6 +86,7 @@ enum PoolIds : lp_id_t {
   GYR_3_VEC,
   GYR_VEC_TOT,
   // GPS Processed
+  SOURCE,
   GC_LATITUDE,
   GD_LONGITUDE,
   ALTITUDE,
@@ -120,7 +121,7 @@ static constexpr uint8_t SUS_SET_RAW_ENTRIES = 12;
 static constexpr uint8_t SUS_SET_PROCESSED_ENTRIES = 15;
 static constexpr uint8_t GYR_SET_RAW_ENTRIES = 4;
 static constexpr uint8_t GYR_SET_PROCESSED_ENTRIES = 5;
-static constexpr uint8_t GPS_SET_PROCESSED_ENTRIES = 5;
+static constexpr uint8_t GPS_SET_PROCESSED_ENTRIES = 6;
 static constexpr uint8_t MEKF_SET_ENTRIES = 3;
 static constexpr uint8_t CTRL_VAL_SET_ENTRIES = 5;
 static constexpr uint8_t ACT_CMD_SET_ENTRIES = 3;
@@ -244,8 +245,9 @@ class GpsDataProcessed : public StaticLocalDataSet<GPS_SET_PROCESSED_ENTRIES> {
   lp_var_t<double> altitude = lp_var_t<double>(sid.objectId, ALTITUDE, this);
   lp_vec_t<double, 3> gpsPosition = lp_vec_t<double, 3>(sid.objectId, GPS_POSITION, this);
   lp_vec_t<double, 3> gpsVelocity = lp_vec_t<double, 3>(sid.objectId, GPS_VELOCITY, this);
+  lp_var_t<uint8_t> source = lp_var_t<uint8_t>(sid.objectId, SOURCE, this)
 
- private:
+      private:
 };
 
 class MekfData : public StaticLocalDataSet<MEKF_SET_ENTRIES> {