diff --git a/halyde/kernel/boot.lua b/halyde/kernel/boot.lua
index 90b5072..fb0b8dc 100644
--- a/halyde/kernel/boot.lua
+++ b/halyde/kernel/boot.lua
@@ -72,6 +72,14 @@ package.preload("computer")
 package.preload("log")
 package.preload("event")
 
+local computer = require("computer")
+function wait(seconds)
+  local oldTime = computer.uptime()
+  while computer.uptime() < oldTime + seconds do
+    coroutine.yield()
+  end
+end
+
 if not filesystem.exists("/halyde/config/startupapps.json") then
   filesystem.copy("/halyde/config/generate/startupapps.json", "/halyde/config/startupapps.json")
 end
diff --git a/halyde/kernel/modules/defenv.lua b/halyde/kernel/modules/defenv.lua
index fa9a87c..854f3ef 100644
--- a/halyde/kernel/modules/defenv.lua
+++ b/halyde/kernel/modules/defenv.lua
@@ -39,6 +39,7 @@ function module.init()
     "checkArg",
     "utf8",
     "convert",
+    "wait"
   }
   for _, value in ipairs(publicTable) do
     _G._PUBLIC[value] = table.copy(_G[value])