diff --git a/Documentation.md b/Documentation.md
index 265e5eeb..46b6ecc9 100644
--- a/Documentation.md
+++ b/Documentation.md
@@ -10,7 +10,7 @@ The text can be reused for
 - LLVM backend
 - HPT as abstract interpretation with native codegen
 - node layout language
-- partial HPT
+- partial HPT (i.e. single module)
 - recursion schemes
 - on the fly node layout migration at runtime on live program data
 - compilation with transformation history (bidirectional source map)