diff --git a/board/dave/ZefeerEVB/flashmem.c b/board/dave/ZefeerEVB/flashmem.c
--- a/board/dave/ZefeerEVB/flashmem.c
+++ b/board/dave/ZefeerEVB/flashmem.c
@@ -810,12 +810,14 @@ static int flash_write_cfibuffer(flash_i
 					 "write to buffer")) == ERR_OK) {
 		switch(info->portwidth) {
 		case FLASH_CFI_8BIT:
 			cnt = len;
 			break;
-		case FLASH_CFI_16BIT:
+		case FLASH_CFI_16BIT:							
 			cnt = len >> 1;
+			if (len % 2)
+				cnt += 1;
 			break;
 		case FLASH_CFI_32BIT:
 			cnt = len >> 2;
 			break;
 		default: