diff --git a/drivers/platform/x86/intel/pmc/core.h b/drivers/platform/x86/intel/pmc/core.h
index a46d3b53bf61a..7a059e02c2656 100644
--- a/drivers/platform/x86/intel/pmc/core.h
+++ b/drivers/platform/x86/intel/pmc/core.h
@@ -236,7 +236,7 @@ enum ppfear_regs {
 #define ADL_LPM_STATUS_LATCH_EN_OFFSET		0x1704
 #define ADL_LPM_LIVE_STATUS_OFFSET		0x1764
 
-const char *pmc_lpm_modes[] = {
+static const char *pmc_lpm_modes[] = {
 	"S0i2.0",
 	"S0i2.1",
 	"S0i2.2",