diff --git a/meta/classes/image_types_wic.bbclass b/meta/classes/image_types_wic.bbclass
index ec6c14d4e6..d012a5d5ca 100644
--- a/meta/classes/image_types_wic.bbclass
+++ b/meta/classes/image_types_wic.bbclass
@@ -8,7 +8,7 @@ WICVARS ?= "\
 WKS_FILE ??= "${IMAGE_BASENAME}.${MACHINE}.wks"
 WKS_FILES ?= "${WKS_FILE} ${IMAGE_BASENAME}.wks"
 WKS_SEARCH_PATH ?= "${THISDIR}:${@':'.join('%s/wic' % p for p in '${BBPATH}'.split(':'))}:${@':'.join('%s/scripts/lib/wic/canned-wks' % l for l in '${BBPATH}:${COREBASE}'.split(':'))}"
-WKS_FULL_PATH = "${@wks_search('${WKS_FILES}'.split(), '${WKS_SEARCH_PATH}') or ''}"
+WKS_FULL_PATH = "${@wks_search(d.getVar('WKS_FILES').split(), d.getVar('WKS_SEARCH_PATH')) or ''}"
 
 def wks_search(files, search_path):
     for f in files: