diff --git a/openpgp-card-sequoia/src/lib.rs b/openpgp-card-sequoia/src/lib.rs
index 6ffa2fb..62bd224 100644
--- a/openpgp-card-sequoia/src/lib.rs
+++ b/openpgp-card-sequoia/src/lib.rs
@@ -33,7 +33,7 @@ use sequoia_openpgp as openpgp;
 use openpgp_card::algorithm::{Algo, AlgoInfo, Curve};
 use openpgp_card::card_do::{
     ApplicationIdentifier, ApplicationRelatedData, CardholderRelatedData,
-    ExtendedCapabilities, ExtendedLengthInfo, Features, Fingerprint,
+    ExCapFeatures, ExtendedCapabilities, ExtendedLengthInfo, Fingerprint,
     HistoricalBytes, KeyGenerationTime, PWStatusBytes,
     SecuritySupportTemplate, Sex,
 };
@@ -697,7 +697,7 @@ impl CardBase {
         // The DO "Algorithm Information" (Tag FA) shall be present if
         // Algorithm attributes can be changed
         let ec = self.get_extended_capabilities()?;
-        if !ec.features().contains(&Features::AlgoAttrsChangeable) {
+        if !ec.features().contains(&ExCapFeatures::AlgoAttrsChangeable) {
             // Algorithm attributes can not be changed,
             // list_supported_algo is not supported
             return Ok(None);
diff --git a/openpgp-card/src/card_do.rs b/openpgp-card/src/card_do.rs
index 13925f6..6401b8f 100644
--- a/openpgp-card/src/card_do.rs
+++ b/openpgp-card/src/card_do.rs
@@ -236,7 +236,7 @@ pub struct CardServiceData {
 /// 4.4.3.7 Extended Capabilities
 #[derive(Debug, Eq, PartialEq)]
 pub struct ExtendedCapabilities {
-    features: HashSet<Features>,
+    features: HashSet<ExCapFeatures>,
     sm_algo: u8,
     max_len_challenge: u16,
     max_len_cardholder_cert: u16,
@@ -247,7 +247,7 @@ pub struct ExtendedCapabilities {
 
 /// Features (first byte of Extended Capabilities, see 4.4.3.7)
 #[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)]
-pub enum Features {
+pub enum ExCapFeatures {
     SecureMessaging,
     GetChallenge,
     KeyImport,
diff --git a/openpgp-card/src/card_do/extended_cap.rs b/openpgp-card/src/card_do/extended_cap.rs
index 1622c46..1fc3cba 100644
--- a/openpgp-card/src/card_do/extended_cap.rs
+++ b/openpgp-card/src/card_do/extended_cap.rs
@@ -8,36 +8,36 @@ use nom::{combinator, number::complete as number, sequence};
 use std::collections::HashSet;
 use std::convert::TryFrom;
 
-use crate::card_do::{complete, ExtendedCapabilities, Features};
+use crate::card_do::{complete, ExCapFeatures, ExtendedCapabilities};
 use crate::Error;
 
-fn features(input: &[u8]) -> nom::IResult<&[u8], HashSet<Features>> {
+fn features(input: &[u8]) -> nom::IResult<&[u8], HashSet<ExCapFeatures>> {
     combinator::map(number::u8, |b| {
         let mut f = HashSet::new();
 
         if b & 0x80 != 0 {
-            f.insert(Features::SecureMessaging);
+            f.insert(ExCapFeatures::SecureMessaging);
         }
         if b & 0x40 != 0 {
-            f.insert(Features::GetChallenge);
+            f.insert(ExCapFeatures::GetChallenge);
         }
         if b & 0x20 != 0 {
-            f.insert(Features::KeyImport);
+            f.insert(ExCapFeatures::KeyImport);
         }
         if b & 0x10 != 0 {
-            f.insert(Features::PwStatusChange);
+            f.insert(ExCapFeatures::PwStatusChange);
         }
         if b & 0x08 != 0 {
-            f.insert(Features::PrivateUseDOs);
+            f.insert(ExCapFeatures::PrivateUseDOs);
         }
         if b & 0x04 != 0 {
-            f.insert(Features::AlgoAttrsChangeable);
+            f.insert(ExCapFeatures::AlgoAttrsChangeable);
         }
         if b & 0x02 != 0 {
-            f.insert(Features::Aes);
+            f.insert(ExCapFeatures::Aes);
         }
         if b & 0x01 != 0 {
-            f.insert(Features::KdfDo);
+            f.insert(ExCapFeatures::KdfDo);
         }
 
         f
@@ -46,7 +46,7 @@ fn features(input: &[u8]) -> nom::IResult<&[u8], HashSet<Features>> {
 
 fn parse(
     input: &[u8],
-) -> nom::IResult<&[u8], (HashSet<Features>, u8, u16, u16, u16, u8, u8)> {
+) -> nom::IResult<&[u8], (HashSet<ExCapFeatures>, u8, u16, u16, u16, u8, u8)> {
     nom::combinator::all_consuming(sequence::tuple((
         features,
         number::u8,
@@ -59,7 +59,7 @@ fn parse(
 }
 
 impl ExtendedCapabilities {
-    pub fn features(&self) -> HashSet<Features> {
+    pub fn features(&self) -> HashSet<ExCapFeatures> {
         self.features.clone()
     }
 
@@ -88,7 +88,7 @@ impl TryFrom<&[u8]> for ExtendedCapabilities {
 
 #[cfg(test)]
 mod test {
-    use crate::card_do::extended_cap::{ExtendedCapabilities, Features};
+    use crate::card_do::extended_cap::{ExCapFeatures, ExtendedCapabilities};
     use hex_literal::hex;
     use std::collections::HashSet;
     use std::convert::TryFrom;
@@ -103,12 +103,12 @@ mod test {
             ec,
             ExtendedCapabilities {
                 features: HashSet::from_iter(vec![
-                    Features::GetChallenge,
-                    Features::KeyImport,
-                    Features::PwStatusChange,
-                    Features::PrivateUseDOs,
-                    Features::AlgoAttrsChangeable,
-                    Features::KdfDo
+                    ExCapFeatures::GetChallenge,
+                    ExCapFeatures::KeyImport,
+                    ExCapFeatures::PwStatusChange,
+                    ExCapFeatures::PrivateUseDOs,
+                    ExCapFeatures::AlgoAttrsChangeable,
+                    ExCapFeatures::KdfDo
                 ]),
                 sm_algo: 0x0,
                 max_len_challenge: 0xbfe,
diff --git a/openpgp-card/src/keys.rs b/openpgp-card/src/keys.rs
index 12504d3..1d39c11 100644
--- a/openpgp-card/src/keys.rs
+++ b/openpgp-card/src/keys.rs
@@ -12,7 +12,7 @@ use crate::apdu::command::Command;
 use crate::apdu::commands;
 use crate::card_app::CardApp;
 use crate::card_do::{
-    ApplicationRelatedData, Features, Fingerprint, KeyGenerationTime,
+    ApplicationRelatedData, ExCapFeatures, Fingerprint, KeyGenerationTime,
 };
 use crate::crypto_data::{
     CardUploadableKey, EccKey, EccPub, PrivateKeyMaterial, PublicKeyMaterial,
@@ -198,7 +198,7 @@ pub(crate) fn key_import(
     if ard
         .get_extended_capabilities()?
         .features()
-        .contains(&Features::AlgoAttrsChangeable)
+        .contains(&ExCapFeatures::AlgoAttrsChangeable)
     {
         card_app.set_algorithm_attributes(key_type, &algo)?;
     }