diff --git a/package/swupdate/swupdate.mk b/package/swupdate/swupdate.mk
index e16060f5cb..065ae772ba 100644
--- a/package/swupdate/swupdate.mk
+++ b/package/swupdate/swupdate.mk
@@ -172,6 +172,13 @@ else
 SWUPDATE_MAKE_ENV += HAVE_WOLFSSL=n
 endif
 
+ifeq ($(BR2_PACKAGE_ZCHUNK),y)
+SWUPDATE_DEPENDENCIES += zchunk
+SWUPDATE_MAKE_ENV += HAVE_ZCK=y
+else
+SWUPDATE_MAKE_ENV += HAVE_ZCK=n
+endif
+
 ifeq ($(BR2_PACKAGE_ZEROMQ),y)
 SWUPDATE_DEPENDENCIES += zeromq
 SWUPDATE_MAKE_ENV += HAVE_LIBZEROMQ=y