diff --git a/mineleader.lua b/mineleader.lua
index f8d8856..af9e602 100644
--- a/mineleader.lua
+++ b/mineleader.lua
@@ -378,7 +378,7 @@ local function moveTo(dest)
 	local oldPos = nil
 	while not vectorEqual(dest, position) do
 		if oldPos ~= nil and vectorEqual(oldPos, position) then
-			sendLog(FAILED, "Cannot proceed to due obstacle. XYZ being blocked: " .. xBlocked .. "," .. yBlocked .. "," .. zBlocked)
+			sendLog(FAILED, "Cannot proceed to due obstacle. XYZ being blocked: " .. tostring(xBlocked) .. "," .. tostring(yBlocked) .. "," .. tostring(zBlocked))
 			break
 		end
 		oldPos = vector.new(position.x, position.y, position.z);