diff --git a/ProcessLib/Utils/VectorUtil.h b/ProcessLib/Utils/VectorUtil.h
index 543d29b99f045f56e597170444058a20903a2b34..2a4ceac13be0fe3d67aa6f8b4e18fd675f10d057 100644
--- a/ProcessLib/Utils/VectorUtil.h
+++ b/ProcessLib/Utils/VectorUtil.h
@@ -15,6 +15,8 @@
 
 namespace ProcessLib
 {
+//! Returns the value for the given \c node_id and \c global_component_id from
+//! the vector \c x.
 double getNodalValue(GlobalVector const& x, MeshLib::Mesh const& mesh,
                      NumLib::LocalToGlobalIndexMap const& dof_table,
                      std::size_t const node_id,