diff --git a/src/key.rs b/src/key.rs
index 3a09dcf..684f39d 100644
--- a/src/key.rs
+++ b/src/key.rs
@@ -21,8 +21,8 @@ use yubikey::{
 use crate::{
     error::Error,
     fl,
-    format::RecipientLine,
     p256::{Recipient, TAG_BYTES},
+    piv_p256,
     util::{otp_serial_prefix, Metadata},
     IDENTITY_PREFIX,
 };
@@ -476,7 +476,7 @@ impl Stub {
         bytes
     }
 
-    pub(crate) fn matches(&self, line: &RecipientLine) -> bool {
+    pub(crate) fn matches(&self, line: &piv_p256::RecipientLine) -> bool {
         self.tag == line.tag
     }
 
diff --git a/src/main.rs b/src/main.rs
index adf4de4..9dda740 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -16,9 +16,9 @@ use yubikey::{piv::RetiredSlotId, reader::Context, PinPolicy, Serial, TouchPolic
 
 mod builder;
 mod error;
-mod format;
 mod key;
 mod p256;
+mod piv_p256;
 mod plugin;
 mod util;
 
diff --git a/src/format.rs b/src/piv_p256.rs
similarity index 100%
rename from src/format.rs
rename to src/piv_p256.rs
diff --git a/src/plugin.rs b/src/plugin.rs
index 263e2a6..0b4a2ad 100644
--- a/src/plugin.rs
+++ b/src/plugin.rs
@@ -7,7 +7,7 @@ use age_plugin::{
 use std::collections::{HashMap, HashSet};
 use std::io;
 
-use crate::{fl, format, key, p256::Recipient, PLUGIN_NAME};
+use crate::{fl, key, p256::Recipient, piv_p256, PLUGIN_NAME};
 
 pub(crate) struct Handler;
 
@@ -114,7 +114,7 @@ impl RecipientPluginV1 for RecipientPlugin {
                     self.recipients
                         .iter()
                         .chain(yk_recipients.iter())
-                        .map(|pk| format::RecipientLine::wrap_file_key(&file_key, pk).into())
+                        .map(|pk| piv_p256::RecipientLine::wrap_file_key(&file_key, pk).into())
                         .collect()
                 })
                 .collect())
@@ -159,7 +159,7 @@ impl IdentityPluginV1 for IdentityPlugin {
         let mut file_keys = HashMap::with_capacity(files.len());
 
         // Filter to files / stanzas for which we have matching YubiKeys
-        let mut candidate_stanzas: Vec<(&key::Stub, HashMap<usize, Vec<format::RecipientLine>>)> =
+        let mut candidate_stanzas: Vec<(&key::Stub, HashMap<usize, Vec<piv_p256::RecipientLine>>)> =
             self.yubikeys
                 .iter()
                 .map(|stub| (stub, HashMap::new()))
@@ -168,7 +168,7 @@ impl IdentityPluginV1 for IdentityPlugin {
         for (file, stanzas) in files.iter().enumerate() {
             for (stanza_index, stanza) in stanzas.iter().enumerate() {
                 match (
-                    format::RecipientLine::from_stanza(stanza).map(|res| {
+                    piv_p256::RecipientLine::from_stanza(stanza).map(|res| {
                         res.map_err(|_| identity::Error::Stanza {
                             file_index: file,
                             stanza_index,