diff --git a/boards/shields/keyboy/keyboy.conf b/boards/shields/keyboy/keyboy.conf
index 44cf0a0..4489a14 100644
--- a/boards/shields/keyboy/keyboy.conf
+++ b/boards/shields/keyboy/keyboy.conf
@@ -1,3 +1,8 @@
+# Set SPI bus init priority for POST_KERNEL
+CONFIG_SPI_INIT_PRIORITY=40
+
+# Set shift register init priority for POST_KERNEL, higher priority than the kernel default
+CONFIG_GPIO_595_INIT_PRIORITY=45
+
+# Set the default kernel init priority
 CONFIG_KERNEL_INIT_PRIORITY_DEFAULT=50
-CONFIG_SPI_INIT_PRIORITY=30
-CONFIG_GPIO_595_INIT_PRIORITY=40