diff --git a/sys/conf/options.pc98 b/sys/conf/options.pc98
index d6fc889010f..b270fda9426 100644
--- a/sys/conf/options.pc98
+++ b/sys/conf/options.pc98
@@ -102,3 +102,6 @@ PC98			opt_global.h
 DEV_APIC		opt_apic.h
 DEV_MECIA		opt_mecia.h
 DEV_NPX			opt_npx.h
+
+# Debugging
+KDB_STOP_NMI		opt_global.h