diff --git a/code/Geometry/GeometryUtils.h b/code/Geometry/GeometryUtils.h
index 2e205c872..ae88d376b 100644
--- a/code/Geometry/GeometryUtils.h
+++ b/code/Geometry/GeometryUtils.h
@@ -49,6 +49,10 @@ namespace Assimp {
 // ---------------------------------------------------------------------------
 class ASSIMP_API GeometryUtils {
 public:
+    /// @brief Will calculate the area of a triangle.
+    /// @param a  The first vertex of the triangle.
+    /// @param b  The first vertex of the triangle.
+    /// @param c  The first vertex of the triangle.
     static ai_real heron( ai_real a, ai_real b, ai_real c );
     
     /// @brief Will compute the distance between 2 3D-vectors