diff --git a/app/src/main/res/drawable-hdpi/open_note.png b/app/src/main/res/drawable-hdpi/ic_open_note.png
similarity index 100%
rename from app/src/main/res/drawable-hdpi/open_note.png
rename to app/src/main/res/drawable-hdpi/ic_open_note.png
diff --git a/app/src/main/res/drawable-mdpi/open_note.png b/app/src/main/res/drawable-mdpi/ic_open_note.png
similarity index 100%
rename from app/src/main/res/drawable-mdpi/open_note.png
rename to app/src/main/res/drawable-mdpi/ic_open_note.png
diff --git a/app/src/main/res/drawable-xhdpi/open_note.png b/app/src/main/res/drawable-xhdpi/ic_open_note.png
similarity index 100%
rename from app/src/main/res/drawable-xhdpi/open_note.png
rename to app/src/main/res/drawable-xhdpi/ic_open_note.png
diff --git a/app/src/main/res/drawable-xxhdpi/open_note.png b/app/src/main/res/drawable-xxhdpi/ic_open_note.png
similarity index 100%
rename from app/src/main/res/drawable-xxhdpi/open_note.png
rename to app/src/main/res/drawable-xxhdpi/ic_open_note.png
diff --git a/app/src/main/res/drawable-xxxhdpi/open_note.png b/app/src/main/res/drawable-xxxhdpi/ic_open_note.png
similarity index 100%
rename from app/src/main/res/drawable-xxxhdpi/open_note.png
rename to app/src/main/res/drawable-xxxhdpi/ic_open_note.png
diff --git a/app/src/main/res/menu/menu.xml b/app/src/main/res/menu/menu.xml
index 71937b5d..8969ae1a 100644
--- a/app/src/main/res/menu/menu.xml
+++ b/app/src/main/res/menu/menu.xml
@@ -3,7 +3,7 @@
       xmlns:app="http://schemas.android.com/apk/res-auto">
     <item
         android:id="@+id/open_note"
-        android:icon="@drawable/open_note"
+        android:icon="@drawable/ic_open_note"
         android:title="@string/open_note"
         app:showAsAction="ifRoom"/>
     <item