diff --git a/src/tpm2.rs b/src/tpm2.rs
index 993f027..ef79bef 100644
--- a/src/tpm2.rs
+++ b/src/tpm2.rs
@@ -5,7 +5,7 @@ pub use crate::common::{PacketType, PACKET_END_BYTE};
 #[derive(PartialEq)]
 #[non_exhaustive]
 pub enum Tpm2Error {
-    InvalidPacket,
+    PayloadTooLarge,
 }
 
 pub struct Packet<'a> {
@@ -23,7 +23,7 @@ impl<'a> Packet<'a> {
 
     pub fn with_payload(packet_type: PacketType, payload: &'a [u8]) -> Result<Self, Tpm2Error> {
         if payload.len() > u16::MAX.into() {
-            return Err(Tpm2Error::InvalidPacket);
+            return Err(Tpm2Error::PayloadTooLarge);
         }
 
         Ok(Packet {
@@ -63,6 +63,6 @@ mod tests {
         let payload = [0u8; u16::MAX as usize + 1];
         let result = Packet::with_payload(PacketType::Response, &payload);
         assert!(result.is_err());
-        assert!(result.err().unwrap() == Tpm2Error::InvalidPacket);
+        assert!(result.err().unwrap() == Tpm2Error::PayloadTooLarge);
     }
 }