diff --git a/app/src/main/java/org/linphone/contacts/ContactsListFragment.java b/app/src/main/java/org/linphone/contacts/ContactsListFragment.java
index 4eeb9129d..4a85babfc 100644
--- a/app/src/main/java/org/linphone/contacts/ContactsListFragment.java
+++ b/app/src/main/java/org/linphone/contacts/ContactsListFragment.java
@@ -70,6 +70,7 @@ public class ContactsListFragment extends Fragment implements OnItemClickListene
         View view = inflater.inflate(R.layout.contacts_list, container, false);
         mContext = getActivity().getApplicationContext();
         mSelectionHelper = new SelectableHelper(view, this);
+        mSelectionHelper.setDialogMessage(R.string.delete_contacts_text);
 
         if (getArguments() != null) {
             editOnClick = getArguments().getBoolean("EditOnClick");
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 79c6a1292..aa73976e8 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -59,6 +59,7 @@
     <string name="link_account">Link your account</string>
     <string name="update_available">An update is available</string>
     <string name="do_not_ask_again">Do not ask again</string>
+    <string name="delete_contacts_text">Are you sure you want to delete these contacts?\nThey will be deleted from your phone as well!</string>
 
     <!-- Launch screen -->
     <string name="app_description">the <i>libre</i> SIP client</string>