diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 59540859bfae6baeb23b8e04b91c854c4b8c0cf8..de8b1c2ed4b4015062717c12bae73d2f56e700dc 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -84,6 +84,7 @@ static const char * const iio_modifier_names[] = {
 	[IIO_MOD_LIGHT_RED] = "red",
 	[IIO_MOD_LIGHT_GREEN] = "green",
 	[IIO_MOD_LIGHT_BLUE] = "blue",
+	[IIO_MOD_QUATERNION] = "quaternion",
 };
 
 /* relies on pairs of these shared then separate */
diff --git a/include/linux/iio/types.h b/include/linux/iio/types.h
index a13c2241abce5f5711d233abab606d0fee43d0f9..4fdab2e843b4e376fb6481e9f29b60759ee35da0 100644
--- a/include/linux/iio/types.h
+++ b/include/linux/iio/types.h
@@ -53,6 +53,7 @@ enum iio_modifier {
 	IIO_MOD_LIGHT_RED,
 	IIO_MOD_LIGHT_GREEN,
 	IIO_MOD_LIGHT_BLUE,
+	IIO_MOD_QUATERNION,
 };
 
 enum iio_event_type {