diff --git a/interface/wx/graphics.h b/interface/wx/graphics.h
index 840ac8075d..8f2b1a63eb 100644
--- a/interface/wx/graphics.h
+++ b/interface/wx/graphics.h
@@ -731,6 +731,8 @@ public:
         This can be useful for applying a tilt to your drawing
         commands or for drawing radial patterns.
 
+        @note A positive angle will rotate clockwise, negative counterclockwise.
+
         @param angle
             Rotation angle in radians, clockwise.