diff --git a/Component-Modem.md b/Component-Modem.md
index 0132c51..b5dc7d5 100644
--- a/Component-Modem.md
+++ b/Component-Modem.md
@@ -32,6 +32,8 @@ This component generates a signal named `modem_message` if a message from anothe
 
 Example use:
 ```lua
+local component = require("component")
+local event = require("event")
 local m = component.modem -- get primary modem component
 m.open(123)
 print(m.isOpen(123)) -- true