diff --git a/coverpkg.sh b/coverpkg.sh
index 7ee751ab6..25d419ae8 100755
--- a/coverpkg.sh
+++ b/coverpkg.sh
@@ -3,5 +3,5 @@
 # need to be passed to `go test -coverpkg`:  this includes all of the
 # subpackage's dependencies within the containing package, as well as the
 # subpackage itself.
-DEPENDENCIES="$(go list -f $'{{range $f := .Deps}}{{$f}}\n{{end}}' ${1} | grep ${2})"
+DEPENDENCIES="$(go list -f $'{{range $f := .Deps}}{{$f}}\n{{end}}' ${1} | grep ${2} | grep -v github.com/docker/distribution/vendor)"
 echo "${1} ${DEPENDENCIES}" | xargs echo -n | tr ' ' ','