diff --git a/basis/ui/backend/cocoa/views/non-retina/platforms.txt b/basis/ui/backend/cocoa/views/non-retina/platforms.txt
new file mode 100644
index 0000000000..6e806f449e
--- /dev/null
+++ b/basis/ui/backend/cocoa/views/non-retina/platforms.txt
@@ -0,0 +1 @@
+macosx
diff --git a/basis/ui/backend/cocoa/views/retina/platforms.txt b/basis/ui/backend/cocoa/views/retina/platforms.txt
new file mode 100644
index 0000000000..6e806f449e
--- /dev/null
+++ b/basis/ui/backend/cocoa/views/retina/platforms.txt
@@ -0,0 +1 @@
+macosx