diff --git a/src/drivers/wifi/generic/acpi.c b/src/drivers/wifi/generic/acpi.c
index 11fc0e0..3cc1c63 100644
--- a/src/drivers/wifi/generic/acpi.c
+++ b/src/drivers/wifi/generic/acpi.c
@@ -273,7 +273,7 @@
 	 * Emit 'Domain Type' + 'Dynamic SAR Enable' + 'Extended SAR sets count'
 	 * + number of bytes for Set#2 & 3 & 4
 	 */
-	package_size = 1 + 1 + 1 + table_size * sar->dsar_set_count;
+	package_size = 1 + 1 + 1 + table_size * MAX_DSAR_SET_COUNT;
 	acpigen_write_package(package_size);
 	acpigen_write_dword(DOMAIN_TYPE_WIFI);
 	acpigen_write_dword(1);