diff --git a/job.go b/job.go
index 354f368..40468a7 100644
--- a/job.go
+++ b/job.go
@@ -145,7 +145,11 @@ func setJobTimeout(jobID64 int64, d time.Duration) error {
 }
 
 func setJobPayload(jobID64 int64, payload []byte) error {
-	var zb bytes.Buffer
+	var (
+		zb       bytes.Buffer
+		zpayload []byte
+		zipped   int
+	)
 
 	if len(payload) > 10000 {
 		zw := zlib.NewWriter(&zb)