diff --git a/board/orangepi/orangepi-pc2/genimage.cfg b/board/orangepi/orangepi-pc2/genimage.cfg
index 72adc47518..cc8695c9f1 100644
--- a/board/orangepi/orangepi-pc2/genimage.cfg
+++ b/board/orangepi/orangepi-pc2/genimage.cfg
@@ -24,7 +24,7 @@ image sdcard.img {
 		in-partition-table = "no"
 		image = "u-boot.itb"
 		offset = 40K
-		size = 1M # 1MB - 40K
+		size = 1M # 1MB - 40KB
 	}
 
 	partition boot {