diff --git a/man2/init_module.2 b/man2/init_module.2
index 4a4caad30..b73e835a0 100644
--- a/man2/init_module.2
+++ b/man2/init_module.2
@@ -265,10 +265,11 @@ are Linux-specific.
 The
 .BR init_module ()
 system call is not supported by glibc.
-No declaration is provided in glibc headers, but,
-through a quirk of history, glibc does export an ABI for this system call.
+No declaration is provided in glibc headers, but, through a quirk of history,
+glibc versions before 2.23 did export an ABI for this system call.
 Therefore, in order to employ this system call,
-it is sufficient to manually declare the interface in your code;
+it is (before glibc 2.23) sufficient to
+manually declare the interface in your code;
 alternatively, you can invoke the system call using
 .BR syscall (2).