diff --git a/src/tpm2net.rs b/src/tpm2net.rs
index 6bd735e..9379b94 100644
--- a/src/tpm2net.rs
+++ b/src/tpm2net.rs
@@ -1,9 +1,9 @@
+pub const OVERHEAD: usize = 7;
+
 pub const PACKET_START_BYTE: u8 = 0x9C;
 
 pub const PAYLOAD_SIZE_MAX: usize = 1465;
 
-const OVERHEAD: usize = 7;
-
 pub use crate::common::{PacketType, PACKET_END_BYTE};
 
 #[derive(PartialEq)]