diff --git a/docs/xml/lcl/lclintf.xml b/docs/xml/lcl/lclintf.xml
index 667a5937e2..e96c13106e 100644
--- a/docs/xml/lcl/lclintf.xml
+++ b/docs/xml/lcl/lclintf.xml
@@ -73,8 +73,12 @@ the Canvas.SaveHandleState and Canvas.RestoreHandleState.
       </element>
       <!-- function Visibility: default -->
       <element name="Arc">
-        <short/>
-        <descr/>
+        <short>Draws an elliptical curve</short>
+        <descr>Use Arc to draw an elliptically curved line with the current Pen.
+  The angles angle1 and angle2 are 1/16th of a degree. For example, a full
+  circle equals 5760 (16*360). Positive values of Angle and AngleLength mean
+  counter-clockwise while negative values mean clockwise direction.
+  Zero degrees is at the 3'o clock position.</descr>
         <errors/>
         <seealso/>
       </element>