diff --git a/app/src/main/kotlin/com/tutpro/baresip/ConfigActivity.kt b/app/src/main/kotlin/com/tutpro/baresip/ConfigActivity.kt
index 7a999d77..42b9699a 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/ConfigActivity.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/ConfigActivity.kt
@@ -376,6 +376,9 @@ class ConfigActivity : AppCompatActivity() {
                     if (it.containsValue(false)) {
                         contactsMode = oldContactsMode
                         contactsSpinner.setSelection(contactsModeKeys.indexOf(oldContactsMode))
+                        Snackbar.make(layout, getString(R.string.no_android_contacts), Snackbar.LENGTH_LONG)
+                                .setAction(getString(R.string.ok), {})
+                                .show()
                     }
                 }
     }
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index cffac98f..047a49af 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
-<resources>
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <color name="design_snackbar_background_color" tools:override="true">@color/colorSecondaryDark</color>
     <color name="colorPrimary">#0ca1fd</color>
     <color name="colorPrimaryDark">#0073c9</color>
     <color name="colorPrimaryLight">#6ad2ff</color>