diff --git a/AntennaTracker/GCS_Mavlink.cpp b/AntennaTracker/GCS_Mavlink.cpp
index 07c1ad2f78..01517b87a5 100644
--- a/AntennaTracker/GCS_Mavlink.cpp
+++ b/AntennaTracker/GCS_Mavlink.cpp
@@ -457,7 +457,7 @@ void GCS_MAVLINK_Tracker::handleMessage(mavlink_message_t* msg)
                 int32_t(1.0e7f*packet.x), // in as DD converted to * t7
                 int32_t(1.0e7f*packet.y), // in as DD converted to * t7
                 int32_t(packet.z*1.0e2f), // in as m converted to cm
-                Location::ALT_FRAME_ABSOLUTE
+                Location::AltFrame::ABSOLUTE
             };
             break;
         }
@@ -469,7 +469,7 @@ void GCS_MAVLINK_Tracker::handleMessage(mavlink_message_t* msg)
                 int32_t(1.0e7f*ToDeg(packet.x/(RADIUS_OF_EARTH*cosf(ToRad(home.lat/1.0e7f)))) + home.lat),
                 int32_t(1.0e7f*ToDeg(packet.y/RADIUS_OF_EARTH) + home.lng),
                 int32_t(-packet.z*1.0e2f),
-                Location::ALT_FRAME_ABOVE_HOME
+                Location::AltFrame::ABOVE_HOME
             };
             break;
         }
@@ -482,7 +482,7 @@ void GCS_MAVLINK_Tracker::handleMessage(mavlink_message_t* msg)
                 int32_t(1.0e7f*ToDeg(packet.x/(RADIUS_OF_EARTH*cosf(ToRad(home.lat/1.0e7f)))) + home.lat),
                 int32_t(1.0e7f*ToDeg(packet.y/RADIUS_OF_EARTH) + home.lng),
                 int32_t(packet.z*1.0e2f),
-                Location::ALT_FRAME_ABOVE_HOME
+                Location::AltFrame::ABOVE_HOME
             };
             break;
         }
@@ -494,7 +494,7 @@ void GCS_MAVLINK_Tracker::handleMessage(mavlink_message_t* msg)
                 int32_t(1.0e7f * packet.x), // in as DD converted to * t7
                 int32_t(1.0e7f * packet.y), // in as DD converted to * t7
                 int32_t(packet.z * 1.0e2f),
-                Location::ALT_FRAME_ABOVE_HOME
+                Location::AltFrame::ABOVE_HOME
             };
             break;
         }
diff --git a/AntennaTracker/system.cpp b/AntennaTracker/system.cpp
index 73eb61ce6b..ceefe428cf 100644
--- a/AntennaTracker/system.cpp
+++ b/AntennaTracker/system.cpp
@@ -146,7 +146,7 @@ bool Tracker::get_home_eeprom(struct Location &loc)
         int32_t(wp_storage.read_uint32(5)),
         int32_t(wp_storage.read_uint32(9)),
         int32_t(wp_storage.read_uint32(1)),
-        Location::ALT_FRAME_ABSOLUTE
+        Location::AltFrame::ABSOLUTE
     };
 
     return true;