diff --git a/src/northbridge/amd/agesa/family15tn/northbridge.c b/src/northbridge/amd/agesa/family15tn/northbridge.c
index 57005c7..e400d10 100644
--- a/src/northbridge/amd/agesa/family15tn/northbridge.c
+++ b/src/northbridge/amd/agesa/family15tn/northbridge.c
@@ -453,7 +453,7 @@
 	ssdt->checksum = acpi_checksum((void *)ssdt, ssdt->length);
 }
 
-static unsigned long agesa_write_acpi_tables(struct device *device,
+static unsigned long agesa_write_acpi_tables(const struct device *device,
 					     unsigned long current,
 					     acpi_rsdp_t *rsdp)
 {