data-parallel/vect-pragma.md

@@ -39,7 +39,7 @@ If a variable `f` is accompanied by a pragma
 then it is ignored by the vectoriser — i.e., no function `f_v` is generated and `f` is left untouched.
 
 
-This pragma can only be used for bindings in the current module (exactly like an `INLINE` pragma).
+This pragma can only be used for bindings in the current module (exactly like an `INLINE` pragma). The pragma must be used on all bindings forming a recursive group if it is used on any of the bindings in a group.
 
 **Caveat:** If `f`'s definition contains bindings that are being floated to the toplevel, those bindings may still be vectorised. (**TODO** We might want to ensure that we never float anything out of (at least, those) bindings before the vectoriser is invoked.)