diff --git a/channel.c b/channel.c
index beab03cac..6905a7655 100644
--- a/channel.c
+++ b/channel.c
@@ -119,6 +119,8 @@ static const char * const modifier_names[] = {
 	[IIO_MOD_PITCH] = "pitch",
 	[IIO_MOD_YAW] = "yaw",
 	[IIO_MOD_ROLL] = "roll",
+	[IIO_MOD_LIGHT_UVA] = "uva",
+	[IIO_MOD_LIGHT_UVB] = "uvb",
 };
 
 /*
diff --git a/include/iio/iio.h b/include/iio/iio.h
index b2b88b08f..589e5eb0a 100644
--- a/include/iio/iio.h
+++ b/include/iio/iio.h
@@ -272,6 +272,8 @@ enum iio_modifier {
 	IIO_MOD_PITCH,
 	IIO_MOD_YAW,
 	IIO_MOD_ROLL,
+	IIO_MOD_LIGHT_UVA,
+	IIO_MOD_LIGHT_UVB,
 };
 
 /**