diff --git a/app/src/main/kotlin/com/tutpro/baresip/AudioActivity.kt b/app/src/main/kotlin/com/tutpro/baresip/AudioActivity.kt
index a3be5753..e0d52cef 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/AudioActivity.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/AudioActivity.kt
@@ -1,8 +1,6 @@
 package com.tutpro.baresip
 
 import android.graphics.Color
-import androidx.appcompat.app.AppCompatActivity
-
 import android.os.Bundle
 import android.util.TypedValue
 import android.view.Gravity
@@ -11,6 +9,8 @@ import android.view.MenuItem
 import android.view.View
 import android.widget.*
 
+import androidx.appcompat.app.AppCompatActivity
+
 class AudioActivity : AppCompatActivity() {
 
     internal lateinit var opusBitRate: EditText
@@ -232,7 +232,7 @@ class AudioActivity : AppCompatActivity() {
                         getString(R.string.aec_help))
             }
             findViewById(R.id.ExtendedFilterTitle) as TextView-> {
-                Utils.alertView(this, getString(R.string.aec),
+                Utils.alertView(this, getString(R.string.aec_extented_filter),
                         getString(R.string.aec_extented_filter_help))
             }
         }