diff --git a/man2/query_module.2 b/man2/query_module.2
index 3799a3d58..98963c135 100644
--- a/man2/query_module.2
+++ b/man2/query_module.2
@@ -158,7 +158,8 @@ is set to the minimum size needed.
 .TP
 .B ENOSYS
 .BR query_module ()
-is not supported in this version of the kernel.
+is not supported in this version of the kernel
+(e.g., the kernel is version 2.6 or later).
 .SH "CONFORMING TO"
 .BR query_module ()
 is Linux-specific.