diff --git a/deltachat-ffi/deltachat.h b/deltachat-ffi/deltachat.h
index 8a3e57f29..bb883edaf 100644
--- a/deltachat-ffi/deltachat.h
+++ b/deltachat-ffi/deltachat.h
@@ -1581,7 +1581,7 @@ int             dc_set_chat_profile_image    (dc_context_t* context, uint32_t ch
 /**
  * Set mute duration of a chat.
  *
- * This value can be checked by the ui upon recieving a new message to decide whether it should trigger an notification.
+ * This value can be checked by the ui upon receiving a new message to decide whether it should trigger an notification.
  *
  * Sends out #DC_EVENT_CHAT_MODIFIED.
  *
@@ -1591,7 +1591,7 @@ int             dc_set_chat_profile_image    (dc_context_t* context, uint32_t ch
  * @param context The context as created by dc_context_new().
  * @return 1=success, 0=error
  */
-int             dc_chat_set_mute_duration             (dc_context_t* context, uint32_t chat_id, int64_t duration);
+int             dc_set_chat_mute_duration             (dc_context_t* context, uint32_t chat_id, int64_t duration);
 
 // handle messages
 
diff --git a/deltachat-ffi/src/lib.rs b/deltachat-ffi/src/lib.rs
index e8cd0c0dd..d1f2248fa 100644
--- a/deltachat-ffi/src/lib.rs
+++ b/deltachat-ffi/src/lib.rs
@@ -1412,13 +1412,13 @@ pub unsafe extern "C" fn dc_set_chat_profile_image(
 }
 
 #[no_mangle]
-pub unsafe extern "C" fn dc_chat_set_mute_duration(
+pub unsafe extern "C" fn dc_set_chat_mute_duration(
     context: *mut dc_context_t,
     chat_id: u32,
     duration: i64,
 ) -> libc::c_int {
     if context.is_null() || chat_id <= constants::DC_CHAT_ID_LAST_SPECIAL as u32 {
-        eprintln!("ignoring careless call to dc_chat_set_mute_duration()");
+        eprintln!("ignoring careless call to dc_set_chat_mute_duration()");
         return 0;
     }
 
diff --git a/python/src/deltachat/chat.py b/python/src/deltachat/chat.py
index 120059ea9..5227b07f0 100644
--- a/python/src/deltachat/chat.py
+++ b/python/src/deltachat/chat.py
@@ -108,14 +108,14 @@ class Chat(object):
             mute_duration = -1
         else:
             mute_duration = duration
-        return bool(lib.dc_chat_set_mute_duration(self._dc_context, self.id, mute_duration))
+        return bool(lib.dc_set_chat_mute_duration(self._dc_context, self.id, mute_duration))
 
     def unmute(self):
         """ unmutes the chat
 
         :returns: 
         """
-        return bool(lib.dc_chat_set_mute_duration(self._dc_context, self.id, 0))
+        return bool(lib.dc_set_chat_mute_duration(self._dc_context, self.id, 0))
 
     def get_mute_duration(self):
         """ Returns the number of seconds until the mute of this chat is lifted.