diff --git a/src/main.rs b/src/main.rs
index a01b10a..3268f84 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -52,7 +52,7 @@ mod ieee80211 {
         })
     }
 
-    pub struct MacAddress([u8; 12]);
+    pub struct MacAddress([u8; 6]);
 }
 
 fn main() -> Result<()> {