diff --git a/gamecore/modules/gamesystem/init.lua b/gamecore/modules/gamesystem/init.lua
index 9c33db9..c3c7fe8 100644
--- a/gamecore/modules/gamesystem/init.lua
+++ b/gamecore/modules/gamesystem/init.lua
@@ -88,7 +88,7 @@ function GameSystem:getSaveNumber()
 end
 
 function GameSystem:resetSave(saveid)
-  if love.filesystem.exists("save" .. saveid .. ".save") then
+  if utils.filesystem.exists("save" .. saveid .. ".save") then
     love.filesystem.remove( "save" .. saveid .. ".save" )
   end
 end
@@ -103,7 +103,7 @@ function GameSystem:getSavePath(saveid, absolute)
   local saveDir = ""
   if (absolute) then
     saveDir = love.filesystem.getSaveDirectory() .. "/"
-    if not love.filesystem.exists(saveDir) then
+    if not utils.filesystem.exists(saveDir) then
       love.filesystem.createDirectory( "" )
     end
   end
@@ -118,7 +118,7 @@ function GameSystem:getSaveName(saveid)
 end
 
 function GameSystem:saveFileExist(saveid)
-  return love.filesystem.exists(self:getSaveName(saveid))
+  return utils.filesystem.exists(self:getSaveName(saveid))
 end
 
 function GameSystem:read(saveid)