Update debugging-main-process.md

diff --git a/docs/tutorial/debugging-main-process.md b/docs/tutorial/debugging-main-process.md
index 977621e..703f7dc 100644 (file)
--- a/docs/tutorial/debugging-main-process.md
+++ b/docs/tutorial/debugging-main-process.md
@@ -63,7 +63,7 @@ $ electron --debug-brk=5858 your/app
 ### 5. Start the [node-inspector][node-inspector] server using electron
 
 ```bash
-$ ATOM_SHELL_INTERNAL_RUN_AS_NODE=1 path/to/electron.exe node_modules/node-inspector/bin/inspector.js
+$ ELECTRON_RUN_AS_NODE=1 path/to/electron.exe node_modules/node-inspector/bin/inspector.js
 ```
 
 ### 6. Load the debugger UI