diff --git a/ichspi.c b/ichspi.c
index 725bfb3..15222d8 100644
--- a/ichspi.c
+++ b/ichspi.c
@@ -1103,7 +1103,7 @@
 	}
 }
 
-static int ich_spi_send_command(struct flashctx *flash, unsigned int writecnt,
+static int ich_spi_send_command(const struct flashctx *flash, unsigned int writecnt,
 				unsigned int readcnt,
 				const unsigned char *writearr,
 				unsigned char *readarr)
@@ -1507,7 +1507,7 @@
 	return 0;
 }
 
-static int ich_spi_send_multicommand(struct flashctx *flash,
+static int ich_spi_send_multicommand(const struct flashctx *flash,
 				     struct spi_command *cmds)
 {
 	int ret = 0;