2 files changed, 19 insertions, 5 deletions
diff --git a/lv2/lv2plug.in/ns/extensions/ui/ui.h b/lv2/lv2plug.in/ns/extensions/ui/ui.h
index 8fada66..27350c4 100644
--- a/lv2/lv2plug.in/ns/extensions/ui/ui.h
+++ b/lv2/lv2plug.in/ns/extensions/ui/ui.h
@@ -17,9 +17,12 @@
 */
 
 /**
-   @file ui.h User Interface API.
+   @defgroup ui User Interfaces
 
-   For high-level documentation, see <http://lv2plug.in/ns/extensions/ui>.
+   User interfaces of any type for plugins,
+   <http://lv2plug.in/ns/extensions/ui> for details.
+
+   @{
 */
 
 #ifndef LV2_UI_H
@@ -431,3 +434,7 @@ typedef const LV2UI_Descriptor* (*LV2UI_DescriptorFunction)(uint32_t index);
 #endif
 
 #endif /* LV2_UI_H */
+
+/**
+   @}
+*/
diff --git a/lv2/lv2plug.in/ns/extensions/units/units.h b/lv2/lv2plug.in/ns/extensions/units/units.h
index a40f097..e61af2a 100644
--- a/lv2/lv2plug.in/ns/extensions/units/units.h
+++ b/lv2/lv2plug.in/ns/extensions/units/units.h
@@ -15,9 +15,12 @@
 */
 
 /**
-   @file units.h
-   C definitions for the LV2 Units extension
-   <http://lv2plug.in/ns/extensions/units>.
+   @defgroup units Units
+
+   Units for LV2 values, see <http://lv2plug.in/ns/extensions/units> for
+   details.
+
+   @{
 */
 
 #ifndef LV2_UNITS_H
@@ -60,3 +63,7 @@
 #define LV2_UNITS__unit             LV2_UNITS_PREFIX "unit"
 
 #endif  /* LV2_UNITS_H */
+
+/**
+   @}
+*/