diff --git a/ch341a_spi.c b/ch341a_spi.c
index 00c2cc7..b031caa 100644
--- a/ch341a_spi.c
+++ b/ch341a_spi.c
@@ -335,7 +335,9 @@
 	stored_delay_us += usecs;
 }
 
-static int ch341a_spi_spi_send_command(const struct flashctx *flash, unsigned int writecnt, unsigned int readcnt, const unsigned char *writearr, unsigned char *readarr)
+static int ch341a_spi_spi_send_command(const struct spi_master *mst,
+				       unsigned int writecnt, unsigned int readcnt,
+				       const unsigned char *writearr, unsigned char *readarr)
 {
 	if (handle == NULL)
 		return -1;