diff --git a/s25f.c b/s25f.c
index dd15efcdb..b0f2438d1 100644
--- a/s25f.c
+++ b/s25f.c
@@ -291,7 +291,7 @@ int s25fs_block_erase_d8(struct flashctx *flash, unsigned int addr, unsigned int
 					s25fs_read_cr(flash, CR3NV_ADDR));
 
 			/* Restore CR3V when flashrom exits */
-			uint8_t *data = calloc(sizeof(uint8_t), 1);
+			uint8_t *data = calloc(1, sizeof(uint8_t));
 			if (!data) {
 				msg_cerr("Out of memory!\n");
 				return 1;
diff --git a/spi25_statusreg.c b/spi25_statusreg.c
index 98988af63..ceb2c7796 100644
--- a/spi25_statusreg.c
+++ b/spi25_statusreg.c
@@ -310,7 +310,7 @@ static int spi_disable_blockprotect_generic(struct flashctx *flash, uint8_t bp_m
 	}
 
 	/* Restore status register content upon exit in finalize_flash_access(). */
-	uint8_t *data = calloc(sizeof(uint8_t), 1);
+	uint8_t *data = calloc(1, sizeof(uint8_t));
 	if (!data) {
 		msg_cerr("Out of memory!\n");
 		return 1;