diff --git a/turtos/startup.lua b/turtos/startup.lua
index 16380c6..dd4a281 100644
--- a/turtos/startup.lua
+++ b/turtos/startup.lua
@@ -12,7 +12,7 @@ end
 
 if fs.exists("/disk/update.json") then
     local info_fp = io.open("/disk/update.json", "r")
-    local info = textutils.unserializeJSON(info_fp:read())
+    local info = textutils.unserializeJSON(info_fp:read("a"))
     info_fp:close()
     print("OTP version: " .. info.ver)
     print("H/W version: " .. _TOS_VER)