diff --git a/package/ntp/ntp.mk b/package/ntp/ntp.mk
index 93cefa1102..110eaf8908 100644
--- a/package/ntp/ntp.mk
+++ b/package/ntp/ntp.mk
@@ -40,10 +40,6 @@ else
 NTP_CONF_OPTS += --disable-ATOM
 endif
 
-define NTP_PATCH_FIXUPS
-	$(SED) "s,^#if.*__GLIBC__.*_BSD_SOURCE.*$$,#if 0," $(@D)/ntpd/refclock_pcf.c
-endef
-
 NTP_INSTALL_FILES_$(BR2_PACKAGE_NTP_NTP_KEYGEN) += util/ntp-keygen
 NTP_INSTALL_FILES_$(BR2_PACKAGE_NTP_NTP_WAIT) += scripts/ntp-wait/ntp-wait
 NTP_INSTALL_FILES_$(BR2_PACKAGE_NTP_NTPDATE) += ntpdate/ntpdate