diff --git a/presentation/src/main/java/com/moez/QKSMS/feature/blocking/numbers/BlockedNumbersController.kt b/presentation/src/main/java/com/moez/QKSMS/feature/blocking/numbers/BlockedNumbersController.kt
index 7b1cbb93ca35273320619a88359d3a39691f203c..83f7bfe7095b0ced831200d6e4b2dc38a212a8c5 100644
--- a/presentation/src/main/java/com/moez/QKSMS/feature/blocking/numbers/BlockedNumbersController.kt
+++ b/presentation/src/main/java/com/moez/QKSMS/feature/blocking/numbers/BlockedNumbersController.kt
@@ -20,6 +20,8 @@ package com.moez.QKSMS.feature.blocking.numbers
 
 import android.view.LayoutInflater
 import android.view.View
+import android.widget.Button
+import android.widget.Toast
 import androidx.appcompat.app.AlertDialog
 import androidx.core.content.ContextCompat
 import com.jakewharton.rxbinding2.view.clicks
@@ -38,11 +40,14 @@ import kotlinx.android.synthetic.main.blocked_numbers_controller.*
 import javax.inject.Inject
 
 class BlockedNumbersController : QkController<BlockedNumbersView, BlockedNumbersState, BlockedNumbersPresenter>(),
-    BlockedNumbersView {
+        BlockedNumbersView {
 
-    @Inject override lateinit var presenter: BlockedNumbersPresenter
-    @Inject lateinit var colors: Colors
-    @Inject lateinit var phoneNumberUtils: PhoneNumberUtils
+    @Inject
+    override lateinit var presenter: BlockedNumbersPresenter
+    @Inject
+    lateinit var colors: Colors
+    @Inject
+    lateinit var phoneNumberUtils: PhoneNumberUtils
 
     private val adapter = BlockedNumbersAdapter()
     private val saveAddressSubject: Subject<String> = PublishSubject.create()
@@ -80,7 +85,11 @@ class BlockedNumbersController : QkController<BlockedNumbersView, BlockedNumbers
         val dialog = AlertDialog.Builder(activity!!, R.style.customAlertDialog)
                 .setView(layout)
                 .setPositiveButton(R.string.blocked_numbers_dialog_block) { _, _ ->
-                    saveAddressSubject.onNext(layout.input.text.toString())
+                    if (!layout.input.text.toString().trim().isEmpty()) {
+                        saveAddressSubject.onNext(layout.input.text.toString())
+                    } else {
+                        Toast.makeText(activity, R.string.not_able_to_add_empty_text, Toast.LENGTH_LONG).show()
+                    }
                 }
                 .setNegativeButton(R.string.button_cancel) { _, _ -> }
                 .setOnDismissListener { textWatcher.dispose() }
diff --git a/presentation/src/main/res/values/strings.xml b/presentation/src/main/res/values/strings.xml
index 3eba897cb7dda4c212e33c809cbbd1876795a0c9..954a814290e0a0a72bd9e12830afd14d986e9cb4 100644
--- a/presentation/src/main/res/values/strings.xml
+++ b/presentation/src/main/res/values/strings.xml
@@ -502,4 +502,5 @@
     <string name="rate_summary">Share some love and rate us on Google Play!</string>
     <string name="rate_okay">OKAY!</string>
     <string name="rate_dismiss">DISMISS</string>
+    <string name="not_able_to_add_empty_text">Not able to add empty text ! please try again</string>
 </resources>