diff --git a/.vscode/settings.json b/.vscode/settings.json
index 7234d9c..5d0899d 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -9,5 +9,6 @@
     "/opt/homebrew/Cellar/avr-gcc@9/9.4.0_1/lib/avr-gcc/9/gcc/avr/9.4.0/include",
     "/opt/homebrew/Cellar/avr-gcc@9/9.4.0_1/avr/include",
     "/opt/homebrew/include"
-  ]
+  ],
+  "C_Cpp.default.defines": ["__AVR_ATmega328P__"]
 }