diff --git a/sys/x86/conf/NOTES b/sys/x86/conf/NOTES
index bb45d4ecbf9..3b3439b519d 100644
--- a/sys/x86/conf/NOTES
+++ b/sys/x86/conf/NOTES
@@ -2,6 +2,12 @@
 
 # Common NOTES between i386 and amd64
 
+#
+# Enable the kernel DTrace hooks which are required to load the DTrace
+# kernel modules.
+#
+#options 	KDTRACE_HOOKS
+
 # DTrace core
 # NOTE: introduces CDDL-licensed components into the kernel
 #device		dtrace