diff --git a/rts/Sim/MoveTypes/MoveMath/MoveMath.cpp b/rts/Sim/MoveTypes/MoveMath/MoveMath.cpp
index 32ca040bb2..276894036c 100644
--- a/rts/Sim/MoveTypes/MoveMath/MoveMath.cpp
+++ b/rts/Sim/MoveTypes/MoveMath/MoveMath.cpp
@@ -33,7 +33,7 @@ MoveTypes::CheckCollisionQuery::CheckCollisionQuery(const CSolidObject* ref)
 
 MoveTypes::CheckCollisionQuery::CheckCollisionQuery(const MoveDef* refMoveDef, float3 testPos)
 	: moveDef(refMoveDef)
-	, pos(testPos)
+	, pos(testPos.cClampInBounds())
 {
 	UpdateElevationForPos(pos);
 }