diff --git a/src/device/device_util.c b/src/device/device_util.c
index 837dfb593f..b538212a83 100644
--- a/src/device/device_util.c
+++ b/src/device/device_util.c
@@ -202,7 +202,7 @@ u32 dev_path_encode(device_t dev)
 		ret |= dev->path.pnp.port << 8 | dev->path.pnp.device;
 		break;
 	case DEVICE_PATH_I2C:
-		ret |= dev->bus->secondary << 8 | dev->path.pnp.device;
+		ret |= dev->path.i2c.mode_10bit << 8 | dev->path.i2c.device;
 		break;
 	case DEVICE_PATH_APIC:
 		ret |= dev->path.apic.apic_id;
@@ -334,7 +334,8 @@ int path_eq(struct device_path *path1, struct device_path *path2)
 			(path1->pnp.device == path2->pnp.device);
 		break;
 	case DEVICE_PATH_I2C:
-		equal = (path1->i2c.device == path2->i2c.device);
+		equal = (path1->i2c.device == path2->i2c.device) &&
+			(path1->i2c.mode_10bit == path2->i2c.mode_10bit);
 		break;
 	case DEVICE_PATH_APIC:
 		equal = (path1->apic.apic_id == path2->apic.apic_id);
diff --git a/src/include/device/path.h b/src/include/device/path.h
index ba7661d6c4..8421a38473 100644
--- a/src/include/device/path.h
+++ b/src/include/device/path.h
@@ -53,6 +53,7 @@ struct pnp_path
 struct i2c_path
 {
 	unsigned device;
+	unsigned mode_10bit;
 };
 
 struct apic_path
diff --git a/util/sconfig/main.c b/util/sconfig/main.c
index 53fb030587..fea90f4c57 100644
--- a/util/sconfig/main.c
+++ b/util/sconfig/main.c
@@ -257,7 +257,7 @@ struct device *new_device(struct device *parent, struct device *busdev, const in
 		break;
 
 	case I2C:
-		new_d->path = ".type=DEVICE_PATH_I2C,{.i2c={ .device = 0x%x }}";
+		new_d->path = ".type=DEVICE_PATH_I2C,{.i2c={ .device = 0x%x, .mode_10bit = %d }}";
 		break;
 
 	case APIC: