diff --git a/Cargo.toml b/Cargo.toml
index eccc258..c7447cb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,7 +13,6 @@ crate-type = ["lib", "cdylib", "staticlib"]
 
 [features]
 speech_dispatcher_0_10 = ["speech-dispatcher/0_10"]
-default = ["speech_dispatcher_0_10"]
 
 [dependencies]
 dyn-clonable = "0.9"
diff --git a/src/backends/speech_dispatcher.rs b/src/backends/speech_dispatcher.rs
index 12ea534..b3034a1 100644
--- a/src/backends/speech_dispatcher.rs
+++ b/src/backends/speech_dispatcher.rs
@@ -6,7 +6,7 @@ use log::{info, trace};
 use speech_dispatcher::*;
 use unic_langid::LanguageIdentifier;
 
-use crate::{Backend, BackendId, Error, Features, Gender, UtteranceId, Voice, CALLBACKS};
+use crate::{Backend, BackendId, Error, Features, UtteranceId, Voice, CALLBACKS};
 
 #[derive(Clone, Debug)]
 pub(crate) struct SpeechDispatcher(Connection);
@@ -191,7 +191,7 @@ impl Backend for SpeechDispatcher {
             .map(|v| Voice {
                 id: v.name.clone(),
                 name: v.name.clone(),
-                gender: Gender::Unspecified,
+                gender: None,
                 language: LanguageIdentifier::from_str(&v.language).unwrap(),
             })
             .collect::<Vec<Voice>>();
diff --git a/src/backends/web.rs b/src/backends/web.rs
index a39dff2..578a213 100644
--- a/src/backends/web.rs
+++ b/src/backends/web.rs
@@ -11,9 +11,7 @@ use web_sys::{
     SpeechSynthesisUtterance, SpeechSynthesisVoice,
 };
 
-use crate::Gender;
-use crate::Voice;
-use crate::{Backend, BackendId, Error, Features, UtteranceId, CALLBACKS};
+use crate::{Backend, BackendId, Error, Features, UtteranceId, Voice, CALLBACKS};
 
 #[derive(Clone, Debug)]
 pub struct Web {
@@ -270,7 +268,7 @@ impl From<SpeechSynthesisVoice> for Voice {
         Voice {
             id: other.voice_uri(),
             name: other.name(),
-            gender: Gender::Unspecified,
+            gender: None,
             language,
         }
     }
diff --git a/src/backends/winrt.rs b/src/backends/winrt.rs
index 97bd130..ceb5f00 100644
--- a/src/backends/winrt.rs
+++ b/src/backends/winrt.rs
@@ -354,7 +354,7 @@ impl TryInto<Voice> for VoiceInformation {
         Ok(Voice {
             id: self.Id()?.try_into()?,
             name: self.DisplayName()?.try_into()?,
-            gender,
+            gender: Some(gender),
             language,
         })
     }