diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index f97cd42fbc227d770f0f6d225aceedb088905849..7293d6d875c5c692184d1c45aea151f063bb6cd0 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -1265,7 +1265,7 @@ static void cleanup(struct spi_device *spi)
 
 #ifdef CONFIG_ACPI
 
-static struct acpi_device_id pxa2xx_spi_acpi_match[] = {
+static const struct acpi_device_id pxa2xx_spi_acpi_match[] = {
 	{ "INT33C0", LPSS_LPT_SSP },
 	{ "INT33C1", LPSS_LPT_SSP },
 	{ "INT3430", LPSS_LPT_SSP },