diff --git a/app/src/main/res/layout/activity_coin.xml b/app/src/main/res/layout/activity_coin.xml
index a2262df..347a721 100644
--- a/app/src/main/res/layout/activity_coin.xml
+++ b/app/src/main/res/layout/activity_coin.xml
@@ -4,7 +4,8 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
-    android:layout_height="match_parent">
+    android:layout_height="match_parent"
+    tools:context=".CoinActivity">
 
     <Button
         android:id="@+id/flipButton"
diff --git a/app/src/main/res/layout/activity_dice.xml b/app/src/main/res/layout/activity_dice.xml
index 51f7a78..03a6492 100644
--- a/app/src/main/res/layout/activity_dice.xml
+++ b/app/src/main/res/layout/activity_dice.xml
@@ -4,7 +4,8 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
-    android:layout_height="match_parent">
+    android:layout_height="match_parent"
+    tools:context=".DiceActivity">
 
     <Button
         android:id="@+id/rollButton"