diff --git a/it87.c b/it87.c
index f2c114b..4654485 100644
--- a/it87.c
+++ b/it87.c
@@ -648,7 +648,8 @@ static const struct it87_devices it87_devices[] = {
 		.suffix = "E",
 		.features = FEAT_NEWER_AUTOPWM | FEAT_16BIT_FANS
 		  | FEAT_AVCC3 | FEAT_NEW_TEMPMAP | FEAT_SCALING
-		  | FEAT_10_9MV_ADC | FEAT_IN7_INTERNAL | FEAT_BANK_SEL,
+		  | FEAT_10_9MV_ADC | FEAT_IN7_INTERNAL | FEAT_BANK_SEL
+		  | FEAT_MMIO,
 		.num_temp_limit = 6,
 		.num_temp_offset = 6,
 		.num_temp_map = 6,