diff --git a/sys/conf/options.pc98 b/sys/conf/options.pc98
index da48a7aad2c..ff03d964610 100644
--- a/sys/conf/options.pc98
+++ b/sys/conf/options.pc98
@@ -6,6 +6,7 @@ USER_LDT
 MATH_EMULATE		opt_math_emulate.h
 GPL_MATH_EMULATE	opt_math_emulate.h
 PMAP_SHPGPERPROC	opt_pmap.h
+PPC_PROBE_CHIPSET	opt_ppc.h
 PPC_DEBUG		opt_ppc.h
 SHOW_BUSYBUFS
 PANIC_REBOOT_WAIT_TIME	opt_panic.h