diff --git a/circle.yml b/circle.yml
index 045d13db..93af09bb 100644
--- a/circle.yml
+++ b/circle.yml
@@ -72,7 +72,12 @@ test:
 
   override:
   # Test stable, and report
-     - gvm use stable; export ROOT_PACKAGE=$(go list .); go list -tags "$DOCKER_BUILDTAGS" ./... | grep -v "/vendor/" | xargs -L 1 -I{} bash -c 'export PACKAGE={}; go test -tags "$DOCKER_BUILDTAGS" -test.short -coverprofile=$GOPATH/src/$PACKAGE/coverage.out -coverpkg=$(./coverpkg.sh $PACKAGE $ROOT_PACKAGE) $PACKAGE':
+     - gvm use stable; export ROOT_PACKAGE=$(go list .); go list -tags "$DOCKER_BUILDTAGS" ./... | grep -v "/vendor/" | grep -v pluginloader | xargs -L 1 -I{} bash -c 'export PACKAGE={}; go test -tags "$DOCKER_BUILDTAGS" -test.short -coverprofile=$GOPATH/src/$PACKAGE/coverage.out -coverpkg=$(./coverpkg.sh $PACKAGE $ROOT_PACKAGE) $PACKAGE':
+         timeout: 1000
+         pwd: $BASE_STABLE
+
+  # coverpkg changes the signature of compiled packages
+     - gvm use stable; export PACKAGE=github.com/docker/distribution/registry/pluginloader; go test -tags "$DOCKER_BUILDTAGS" -test.short -coverprofile=$GOPATH/src/$PACKAGE/coverage.out $PACKAGE:
          timeout: 1000
          pwd: $BASE_STABLE