diff --git a/src/errors.rs b/src/errors.rs
index f097c811..b0dfd1fb 100644
--- a/src/errors.rs
+++ b/src/errors.rs
@@ -36,19 +36,19 @@ pub enum RequestError {
     InvalidJson(#[source] serde_json::Error),
 }
 
-/// A kind of an API error returned from Telegram. If you receive Unknown value,
+/// A kind of a API error returned from Telegram. If you receive Unknown value,
 /// please [open the issue](https://github.com/teloxide/teloxide/issues/new) with description
 /// of error.
 #[derive(Debug, Deserialize, PartialEq, Hash, Eq, Clone)]
 #[serde(untagged)]
 pub enum ApiErrorKind {
-    Known(ApiErrorKindKnown),
+    Known(KnownApiErrorKind),
     Unknown(String),
 }
 
-/// A kind of an known API error returned from Telegram.
+/// A kind of a known API error returned from Telegram.
 #[derive(Debug, Deserialize, PartialEq, Copy, Hash, Eq, Clone)]
-pub enum ApiErrorKindKnown {
+pub enum KnownApiErrorKind {
     /// Occurs when the bot tries to send message to user who blocked the bot.
     #[serde(rename = "Forbidden: bot was blocked by the user")]
     BotBlocked,
diff --git a/src/net/telegram_response.rs b/src/net/telegram_response.rs
index 3d30a17c..4be974eb 100644
--- a/src/net/telegram_response.rs
+++ b/src/net/telegram_response.rs
@@ -62,12 +62,12 @@ impl<R> Into<ResponseResult<R>> for TelegramResponse<R> {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use crate::{errors::ApiErrorKindKnown, types::Update};
+    use crate::{errors::KnownApiErrorKind, types::Update};
 
     #[test]
     fn terminated_by_other_get_updates() {
         let expected =
-            ApiErrorKind::Known(ApiErrorKindKnown::TerminatedByOtherGetUpdates);
+            ApiErrorKind::Known(KnownApiErrorKind::TerminatedByOtherGetUpdates);
         if let TelegramResponse::Err{ kind, .. } = serde_json::from_str::<TelegramResponse<Update>>(r#"{"ok":false,"error_code":409,"description":"Conflict: terminated by other getUpdates request; make sure that only one bot instance is running"}"#).unwrap() {
             assert_eq!(expected, kind);
         }