diff --git a/3-99 Research/3 ARCADE/I2C/I2C - README.md b/3-99 Research/3 ARCADE/I2C/I2C - README.md
index a3b4d9fc..5571a23d 100644
--- a/3-99 Research/3 ARCADE/I2C/I2C - README.md	
+++ b/3-99 Research/3 ARCADE/I2C/I2C - README.md	
@@ -4,6 +4,7 @@
 - [[main.c]]
 - [[main.elf]]
 - [[main.hex]]
+- [[makefile]]
 
 ## Summary