diff --git a/app/src/main/kotlin/com/simplemobiletools/dialer/activities/DialerActivity.kt b/app/src/main/kotlin/com/simplemobiletools/dialer/activities/DialerActivity.kt
index 17ed8524..3f7def96 100644
--- a/app/src/main/kotlin/com/simplemobiletools/dialer/activities/DialerActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/dialer/activities/DialerActivity.kt
@@ -36,7 +36,7 @@ class DialerActivity : SimpleActivity() {
     @SuppressLint("MissingPermission")
     private fun initOutgoingCall() {
         try {
-            if (this.isNumberBlocked(callNumber.toString().replace("tel:", ""), this.getBlockedNumbers())) {
+            if (isNumberBlocked(callNumber.toString().replace("tel:", ""), getBlockedNumbers())) {
                 toast(R.string.calling_blocked_number)
                 finish()
                 return