diff --git a/drivers/acpi/tables/tbget.c b/drivers/acpi/tables/tbget.c
index 7856db759af0be7579abcd1733e74d1782455dbe..11e2d4454e053f6ece5f8d6aab31e5b6491e8f0a 100644
--- a/drivers/acpi/tables/tbget.c
+++ b/drivers/acpi/tables/tbget.c
@@ -324,7 +324,7 @@ acpi_tb_get_this_table(struct acpi_pointer *address,
 
 	if (header->length < sizeof(struct acpi_table_header)) {
 		ACPI_ERROR((AE_INFO,
-			    "Table length (%X) is smaller than minimum (%X)",
+			    "Table length (%X) is smaller than minimum (%zX)",
 			    header->length, sizeof(struct acpi_table_header)));
 
 		return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH);
diff --git a/drivers/acpi/tables/tbrsdt.c b/drivers/acpi/tables/tbrsdt.c
index 0ad3dbb9ebca377563a6a177ab092704f63545f8..86a5fca9b739de2b9d42344dc6c5406c55f17f73 100644
--- a/drivers/acpi/tables/tbrsdt.c
+++ b/drivers/acpi/tables/tbrsdt.c
@@ -187,7 +187,7 @@ acpi_status acpi_tb_validate_rsdt(struct acpi_table_header *table_ptr)
 
 	if (table_ptr->length < sizeof(struct acpi_table_header)) {
 		ACPI_ERROR((AE_INFO,
-			    "RSDT/XSDT length (%X) is smaller than minimum (%X)",
+			    "RSDT/XSDT length (%X) is smaller than minimum (%zX)",
 			    table_ptr->length,
 			    sizeof(struct acpi_table_header)));