diff --git a/build/package/backup/Dockerfile b/build/package/backup/Dockerfile
index f652699..508e9aa 100644
--- a/build/package/backup/Dockerfile
+++ b/build/package/backup/Dockerfile
@@ -10,8 +10,6 @@ LABEL maintainer="deepzz.qi@gmail.com"
 RUN apk add --update --no-cache tzdata ca-certificates \
     mongodb-tools libc6-compat gcompat
 
-ENV RUN_MODE=prod
-
 COPY README.md /app/README.md
 COPY CHANGELOG.md /app/CHANGELOG.md
 COPY LICENSE /app/LICENSE
diff --git a/build/package/eiblog/Dockerfile b/build/package/eiblog/Dockerfile
index 9b375f1..ba0ff19 100644
--- a/build/package/eiblog/Dockerfile
+++ b/build/package/eiblog/Dockerfile
@@ -9,8 +9,6 @@ LABEL maintainer="deepzz.qi@gmail.com"
 
 RUN apk add --update --no-cache tzdata ca-certificates
 
-ENV RUN_MODE=prod
-
 COPY README.md /app/README.md
 COPY CHANGELOG.md /app/CHANGELOG.md
 COPY LICENSE /app/LICENSE
diff --git a/cmd/backup/config/config.go b/cmd/backup/config/config.go
index 78d2e34..628257d 100644
--- a/cmd/backup/config/config.go
+++ b/cmd/backup/config/config.go
@@ -28,9 +28,12 @@ var Conf Config
 // load config file
 func init() {
 	// run mode
-	mode := config.RunMode(os.Getenv("RUN_MODE"))
-	if !mode.IsRunMode() {
-		panic("config: unsupported env RUN_MODE: " + mode)
+	mode := config.RunModeProd
+	if m := os.Getenv("RUN_MODE"); m != "" {
+		mode = config.RunMode(m)
+		if !mode.IsRunMode() {
+			panic("config: unsupported env RUN_MODE: " + mode)
+		}
 	}
 	logrus.Infof("Run mode:%s", mode)
 
diff --git a/cmd/eiblog/config/config.go b/cmd/eiblog/config/config.go
index f94923f..0352a99 100644
--- a/cmd/eiblog/config/config.go
+++ b/cmd/eiblog/config/config.go
@@ -43,9 +43,12 @@ type Config struct {
 // init 初始化配置
 func init() {
 	// run mode
-	mode := config.RunMode(os.Getenv("RUN_MODE"))
-	if !mode.IsRunMode() {
-		panic("config: unsupported env RUN_MODE: " + mode)
+	mode := config.RunModeProd
+	if rm := os.Getenv("RUN_MODE"); rm != "" {
+		mode = config.RunMode(rm)
+		if !mode.IsRunMode() {
+			panic("config: unsupported env RUN_MODE: " + mode)
+		}
 	}
 	logrus.Infof("Run mode:%s", mode)