diff --git a/libraries/AP_Common/Location.cpp b/libraries/AP_Common/Location.cpp
index 4af398084e..41b09f1fcc 100644
--- a/libraries/AP_Common/Location.cpp
+++ b/libraries/AP_Common/Location.cpp
@@ -26,6 +26,7 @@ void Location::zero(void)
     memset(this, 0, sizeof(*this));
 }
 
+// Construct location using position (NEU) from ekf_origin for the given altitude frame
 Location::Location(int32_t latitude, int32_t longitude, int32_t alt_in_cm, AltFrame frame)
 {
     zero();
@@ -34,10 +35,10 @@ Location::Location(int32_t latitude, int32_t longitude, int32_t alt_in_cm, AltFr
     set_alt_cm(alt_in_cm, frame);
 }
 
-Location::Location(const Vector3f &ekf_offset_neu)
+Location::Location(const Vector3f &ekf_offset_neu, AltFrame frame)
 {
     // store alt and alt frame
-    set_alt_cm(ekf_offset_neu.z, AltFrame::ABOVE_ORIGIN);
+    set_alt_cm(ekf_offset_neu.z, frame);
 
     // calculate lat, lon
     Location ekf_origin;
diff --git a/libraries/AP_Common/Location.h b/libraries/AP_Common/Location.h
index bb18bedeee..ba317d432f 100644
--- a/libraries/AP_Common/Location.h
+++ b/libraries/AP_Common/Location.h
@@ -32,7 +32,7 @@ public:
     /// constructors
     Location();
     Location(int32_t latitude, int32_t longitude, int32_t alt_in_cm, AltFrame frame);
-    Location(const Vector3f &ekf_offset_neu);
+    Location(const Vector3f &ekf_offset_neu, AltFrame frame);
 
     static void set_terrain(AP_Terrain* terrain) { _terrain = terrain; }