diff --git a/arch/x86/cpu/apollolake/pmc.c b/arch/x86/cpu/apollolake/pmc.c
index 290b2cb..c40065a 100644
--- a/arch/x86/cpu/apollolake/pmc.c
+++ b/arch/x86/cpu/apollolake/pmc.c
@@ -205,7 +205,7 @@
 	return 0;
 }
 
-static struct acpi_pmc_ops apl_pmc_ops = {
+static const struct acpi_pmc_ops apl_pmc_ops = {
 	.init			= apl_pmc_fill_power_state,
 	.prev_sleep_state	= apl_prev_sleep_state,
 	.disable_tco		= apl_disable_tco,
diff --git a/arch/x86/cpu/intel_common/p2sb.c b/arch/x86/cpu/intel_common/p2sb.c
index e6edab0..3765eee 100644
--- a/arch/x86/cpu/intel_common/p2sb.c
+++ b/arch/x86/cpu/intel_common/p2sb.c
@@ -180,7 +180,7 @@
 	return 0;
 }
 
-struct p2sb_ops p2sb_ops = {
+static const struct p2sb_ops p2sb_ops = {
 	.set_hide	= intel_p2sb_set_hide,
 };