diff --git a/content/hardware/09.kits/maker/starter-kit-r4/essentials.md b/content/hardware/09.kits/maker/starter-kit-r4/essentials.md
index 4b9da8d4fc..762c376772 100644
--- a/content/hardware/09.kits/maker/starter-kit-r4/essentials.md
+++ b/content/hardware/09.kits/maker/starter-kit-r4/essentials.md
@@ -1,6 +1,6 @@
 ---
 productsLibrariesMap:
-  - Servo 
-  - LiquidCrystal
-  - Arduino_CapacitiveTouch
+  - servo
+  - liquidCrystal
+  - arduino_CapacitiveTouch
 ---