diff --git a/sw/airborne/pprz_geodetic_int.h b/sw/airborne/pprz_geodetic_int.h
index 0fac1ea510..a46fb40045 100644
--- a/sw/airborne/pprz_geodetic_int.h
+++ b/sw/airborne/pprz_geodetic_int.h
@@ -30,7 +30,7 @@ struct NedCoor_i {
   int32_t z;
 };
 
-/* East North Down local tangeant plane */
+/* East North Up local tangeant plane */
 struct EnuCoor_i {
   int32_t x;
   int32_t y;