diff --git a/package/knock/knock.mk b/package/knock/knock.mk
index 8d2b41e859..682d0316c4 100644
--- a/package/knock/knock.mk
+++ b/package/knock/knock.mk
@@ -10,4 +10,8 @@ KNOCK_LICENSE = GPLv2+
 KNOCK_LICENSE_FILES = COPYING
 KNOCK_DEPENDENCIES = libpcap
 
+ifeq ($(BR2_PREFER_STATIC_LIB),y)
+KNOCK_CONF_OPT = LIBS="$(shell $(STAGING_DIR)/usr/bin/pcap-config --static --additional-libs)"
+endif
+
 $(eval $(autotools-package))