diff --git a/app/src/main/java/org/unifiedpush/distributor/nextpush/activities/AppListAdapter.kt b/app/src/main/java/org/unifiedpush/distributor/nextpush/activities/AppListAdapter.kt
index c22b60a..9291b71 100644
--- a/app/src/main/java/org/unifiedpush/distributor/nextpush/activities/AppListAdapter.kt
+++ b/app/src/main/java/org/unifiedpush/distributor/nextpush/activities/AppListAdapter.kt
@@ -51,7 +51,7 @@ class AppListAdapter(context: Context, private val resource: Int, apps: List<App
         }
         if (selectedItemsIds.get(position)) {
             convertView?.setBackgroundColor(
-                MaterialColors.getColor(convertView, R.attr.colorOnTertiary)
+                MaterialColors.getColor(convertView, com.google.android.material.R.attr.colorOnTertiary)
             )
         } else {
             convertView?.setBackgroundResource(0)
diff --git a/gradle.properties b/gradle.properties
index 8d84a6c..6dadfc4 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -21,5 +21,5 @@ android.useAndroidX=true
 kotlin.code.style=official
 org.gradle.unsafe.configuration-cache=true
 android.defaults.buildfeatures.buildconfig=true
-android.nonTransitiveRClass=false
+android.nonTransitiveRClass=true
 android.nonFinalResIds=false
\ No newline at end of file