diff --git a/mineleader.lua b/mineleader.lua
index e68e3d2..18798c3 100644
--- a/mineleader.lua
+++ b/mineleader.lua
@@ -370,6 +370,7 @@ local function moveTo(dest, range)
     sendLog(MOVETO, "Attempting to move by (" .. dest.x .. "," .. dest.y .. "," .. dest.z .. ") (x,y,z).")
 	if position == nil or heading == nil then
 		sendLog(FAILED, "Position or heading is invalid.")
+		return
 	end
 	local xBlocked, yBlocked, zBlocked = false, false, false
 	local oldPos = nil