diff --git a/meta/recipes-bsp/u-boot-script/files/update-u-boot-script b/meta/recipes-bsp/u-boot-script/files/update-u-boot-script
index e9ace15e..1d9c6d45 100755
--- a/meta/recipes-bsp/u-boot-script/files/update-u-boot-script
+++ b/meta/recipes-bsp/u-boot-script/files/update-u-boot-script
@@ -63,6 +63,7 @@ if [ -n "${OVERLAYS}" ]; then
 		if ! echo $OVERLAY | grep -q "^/"; then
 			OVERLAY_PATH=/usr/lib/linux-image-${KERNEL_VERSION}/
 		fi
+		# The ${OVERLAY} might contain an u-boot variable with multiple entries.
 		echo "for entry in ${OVERLAY}; do" >> ${BOOT_CMD}
 		echo "echo Loading ${OVERLAY_PATH}\${entry}..." >> ${BOOT_CMD}
 		echo "load \${devtype} \${devnum}:${ROOT_PARTITION}" \