diff --git a/documentation/current/method/void-safe-programming-eiffel/void-safety-background-definition-and-tools.wiki b/documentation/current/method/void-safe-programming-eiffel/void-safety-background-definition-and-tools.wiki
index 968d1b7c..9c55ef5d 100644
--- a/documentation/current/method/void-safe-programming-eiffel/void-safety-background-definition-and-tools.wiki
+++ b/documentation/current/method/void-safe-programming-eiffel/void-safety-background-definition-and-tools.wiki
@@ -249,9 +249,15 @@ What do we know about the void-safety of x ?
In the case of the INTEGER derivation above, we know x is safe because INTEGER is an expanded type. But often types like EMPLOYEE will be reference types which could be void at run time.
-So for a class like C [G] containing a declaration x: G :
-* G is considered detachable and any class will work for an actual generic parameter
-* Application of features to x must include verification of attachment (CAPs, attached syntax, etc)
+'''For a class like C [G], G is considered detachable'''. As a result, because of the [[Void-safety: Background, definition, and tools#Rule for conformance|rule for conformance]], any class will work for an actual generic parameter. That means that both of the following are valid generic derivations:
+
+
+ my_detachable_string_derivation: C [detachable STRING]
+
+ my_attached_string_derivation: C [attached STRING]
+
+
+If C contains a declaration x: G, the application of features to x must include verification of attachment (CAPs, attached syntax, etc).
Constrained genericity can be used to create generic classes in which the generic parameter represents an attached type. If class C had been defined as: