diff --git a/dune/common/boundschecking.hh b/dune/common/boundschecking.hh
index 9d751786ea6f07553dc18ce7e4e738a70bc3d637..8a9e692367d9331e209f83786ba34966d6acecdd 100644
--- a/dune/common/boundschecking.hh
+++ b/dune/common/boundschecking.hh
@@ -11,6 +11,12 @@
       DUNE_THROW(Dune::RangeError, "Index out of bounds."); \
   } while (false)
 #else
+/**
+   If `DUNE_CHECK_BOUNDS` is defined: check if a condition holds;
+   otherwise, do nothing. Meant to be used for conditions that assure
+   writes and reads do not occur outside of memory limits or
+   pre-defined patterns and related conditions.
+*/
 #define DUNE_ASSERT_BOUNDS(cond)
 #endif
 #endif