diff --git a/app/src/main/kotlin/com/tutpro/baresip/ChatScreen.kt b/app/src/main/kotlin/com/tutpro/baresip/ChatScreen.kt
index d7fa0b0d..61b23b58 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/ChatScreen.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/ChatScreen.kt
@@ -470,7 +470,7 @@ private fun NewMessage(
     val aor = account.aor
     val ua = UserAgent.ofAor(aor)!!
 
-    var newMessage = rememberSaveable(stateSaver = TextFieldValue.Saver) {
+    val newMessage = rememberSaveable(stateSaver = TextFieldValue.Saver) {
         mutableStateOf(TextFieldValue(""))
     }
     var textFieldLoaded by remember { mutableStateOf(false) }