diff --git a/README.md b/README.md
index c5385cb..ee94be2 100644
--- a/README.md
+++ b/README.md
@@ -168,10 +168,14 @@ Where `T` any of the respective IDL-Types (not their respective c-type, as menti
 
 #### Rules For Parameters Of Primitive-Type
 
-The caller has to allocate memory for `T`.
-For mode `Update`, the callee is allowed to mutate the memory pointed to by `T*`.
 (1) A primitive-type cannot be consumed or produced because it's always statically allocated.
 
+### Update
+
+The caller has to allocate memory for `T*`.   
+The callee is allowed to mutate the memory pointed to by `T*`.   
+The caller is responsible to free the memory pointed to by `T*`.   
+
 #### Rules For Parameters Of Object-Type
 
 ##### Read