diff --git a/config/corneish_zen_v2_right.overlay b/config/corneish_zen_v2_right.overlay
index d488f6dba..ffc969e3c 100644
--- a/config/corneish_zen_v2_right.overlay
+++ b/config/corneish_zen_v2_right.overlay
@@ -89,7 +89,7 @@
         spi-max-frequency = <4000000>;
 
         /* WS2812 */
-        chain-length = <10>; /* 40 keys have underglow at the moment */
+        chain-length = <12>; /* 40 keys have underglow at the moment */
         spi-one-frame = <0x70>;
         spi-zero-frame = <0x40>;