diff --git a/asynq.go b/asynq.go
index aa586c4..e32209a 100644
--- a/asynq.go
+++ b/asynq.go
@@ -32,10 +32,10 @@ type RedisConfig struct {
 	DB int
 }
 
-func newRedisClient(config *RedisConfig) *redis.Client {
+func newRedisClient(cfg *RedisConfig) *redis.Client {
 	return redis.NewClient(&redis.Options{
-		Addr:     config.Addr,
-		Password: config.Password,
-		DB:       config.DB,
+		Addr:     cfg.Addr,
+		Password: cfg.Password,
+		DB:       cfg.DB,
 	})
 }
diff --git a/background.go b/background.go
index a8e9398..42731fa 100644
--- a/background.go
+++ b/background.go
@@ -33,8 +33,8 @@ type Background struct {
 
 // NewBackground returns a new Background with the specified number of workers
 // given a redis configuration .
-func NewBackground(numWorkers int, config *RedisConfig) *Background {
-	r := rdb.NewRDB(newRedisClient(config))
+func NewBackground(numWorkers int, cfg *RedisConfig) *Background {
+	r := rdb.NewRDB(newRedisClient(cfg))
 	poller := newPoller(r, 5*time.Second)
 	processor := newProcessor(r, numWorkers, nil)
 	return &Background{
diff --git a/client.go b/client.go
index 0ad6224..a13b04b 100644
--- a/client.go
+++ b/client.go
@@ -18,8 +18,8 @@ type Client struct {
 }
 
 // NewClient and returns a new Client given a redis configuration.
-func NewClient(config *RedisConfig) *Client {
-	r := rdb.NewRDB(newRedisClient(config))
+func NewClient(cfg *RedisConfig) *Client {
+	r := rdb.NewRDB(newRedisClient(cfg))
 	return &Client{r}
 }
 
diff --git a/tools/asynqmon/cmd/enq.go b/tools/asynqmon/cmd/enq.go
index bbf6d53..e4b038b 100644
--- a/tools/asynqmon/cmd/enq.go
+++ b/tools/asynqmon/cmd/enq.go
@@ -2,7 +2,7 @@ package cmd
 
 import (
 	"fmt"
-	"log"
+	"os"
 
 	"github.com/go-redis/redis/v7"
 	"github.com/hibiken/asynq/internal/rdb"
@@ -42,7 +42,8 @@ func init() {
 func enq(cmd *cobra.Command, args []string) {
 	id, score, qtype, err := parseQueryID(args[0])
 	if err != nil {
-		log.Fatalln(err)
+		fmt.Println(err)
+		os.Exit(1)
 	}
 	r := rdb.NewRDB(redis.NewClient(&redis.Options{
 		Addr: uri,
@@ -56,10 +57,12 @@ func enq(cmd *cobra.Command, args []string) {
 	case "d":
 		err = r.Rescue(id.String(), float64(score))
 	default:
-		log.Fatalln("invalid argument")
+		fmt.Println("invalid argument")
+		os.Exit(1)
 	}
 	if err != nil {
-		log.Fatalln(err)
+		fmt.Println(err)
+		os.Exit(1)
 	}
 	fmt.Printf("Successfully enqueued %v\n", args[0])
 }
diff --git a/tools/asynqmon/cmd/ls.go b/tools/asynqmon/cmd/ls.go
index 7f1ecc2..b729cd6 100644
--- a/tools/asynqmon/cmd/ls.go
+++ b/tools/asynqmon/cmd/ls.go
@@ -3,7 +3,6 @@ package cmd
 import (
 	"fmt"
 	"io"
-	"log"
 	"os"
 	"strconv"
 	"strings"
@@ -105,7 +104,8 @@ func parseQueryID(queryID string) (id uuid.UUID, score float64, qtype string, er
 func listEnqueued(r *rdb.RDB) {
 	tasks, err := r.ListEnqueued()
 	if err != nil {
-		log.Fatalln(err)
+		fmt.Println(err)
+		os.Exit(1)
 	}
 	if len(tasks) == 0 {
 		fmt.Println("No enqueued tasks")
@@ -123,7 +123,8 @@ func listEnqueued(r *rdb.RDB) {
 func listInProgress(r *rdb.RDB) {
 	tasks, err := r.ListInProgress()
 	if err != nil {
-		log.Fatalln(err)
+		fmt.Println(err)
+		os.Exit(1)
 	}
 	if len(tasks) == 0 {
 		fmt.Println("No in-progress tasks")
@@ -141,7 +142,8 @@ func listInProgress(r *rdb.RDB) {
 func listScheduled(r *rdb.RDB) {
 	tasks, err := r.ListScheduled()
 	if err != nil {
-		log.Fatalln(err)
+		fmt.Println(err)
+		os.Exit(1)
 	}
 	if len(tasks) == 0 {
 		fmt.Println("No scheduled tasks")
@@ -160,7 +162,8 @@ func listScheduled(r *rdb.RDB) {
 func listRetry(r *rdb.RDB) {
 	tasks, err := r.ListRetry()
 	if err != nil {
-		log.Fatalln(err)
+		fmt.Println(err)
+		os.Exit(1)
 	}
 	if len(tasks) == 0 {
 		fmt.Println("No retry tasks")
@@ -179,7 +182,8 @@ func listRetry(r *rdb.RDB) {
 func listDead(r *rdb.RDB) {
 	tasks, err := r.ListDead()
 	if err != nil {
-		log.Fatalln(err)
+		fmt.Println(err)
+		os.Exit(1)
 	}
 	if len(tasks) == 0 {
 		fmt.Println("No dead tasks")
diff --git a/tools/asynqmon/cmd/stats.go b/tools/asynqmon/cmd/stats.go
index 35bbf74..59d49c5 100644
--- a/tools/asynqmon/cmd/stats.go
+++ b/tools/asynqmon/cmd/stats.go
@@ -2,7 +2,6 @@ package cmd
 
 import (
 	"fmt"
-	"log"
 	"os"
 	"strings"
 	"text/tabwriter"
@@ -49,7 +48,8 @@ func stats(cmd *cobra.Command, args []string) {
 
 	stats, err := r.CurrentStats()
 	if err != nil {
-		log.Fatal(err)
+		fmt.Println(err)
+		os.Exit(1)
 	}
 	printStats(stats)
 	fmt.Println()