diff --git a/src/modules/navigator/mission_block.cpp b/src/modules/navigator/mission_block.cpp
index 4587290acf..065f8bd307 100644
--- a/src/modules/navigator/mission_block.cpp
+++ b/src/modules/navigator/mission_block.cpp
@@ -745,8 +745,8 @@ MissionBlock::setLoiterItemFromCurrentPositionWithBraking(struct mission_item_s
 		item->yaw = NAN;
 
 	} else {
-		item->lat = NAN;
-		item->lon = NAN;
+		item->lat = (double)NAN;
+		item->lon = (double)NAN;
 		item->altitude = NAN;
 		item->loiter_radius = NAN;
 	}