diff --git a/app/src/main/kotlin/com/tutpro/baresip/ConfigActivity.kt b/app/src/main/kotlin/com/tutpro/baresip/ConfigActivity.kt
index 397808d3..980950da 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/ConfigActivity.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/ConfigActivity.kt
@@ -30,7 +30,6 @@ class ConfigActivity : AppCompatActivity() {
     private var callVolume = BaresipService.callVolume
     private var save = false
     private var restart = false
-    private var config = ""
 
     override fun onCreate(savedInstanceState: Bundle?) {