diff --git a/main.go b/main.go
index 10402a6..1d5c5fd 100644
--- a/main.go
+++ b/main.go
@@ -25,7 +25,7 @@ var (
 	FlagStatusAddr      = ":8087"
 	FlagExclude         []string
 	FlagScratch         bool
-	FlagDefaultFileMode = "0666"
+	FlagDefaultFileMode = "0664"
 
 	metricsSyncTime = prometheus.NewGauge(prometheus.GaugeOpts{
 		Namespace: "objinsync",
@@ -168,7 +168,7 @@ func main() {
 		"skip checksums calculation and override all files during the initial sync",
 	)
 	pullCmd.PersistentFlags().StringVarP(
-		&FlagDefaultFileMode, "default-file-mode", "m", "0666", "default mode to use for creating local file")
+		&FlagDefaultFileMode, "default-file-mode", "m", "0664", "default mode to use for creating local file")
 
 	rootCmd.AddCommand(pullCmd)
 	rootCmd.Execute()
diff --git a/pkg/sync/pull.go b/pkg/sync/pull.go
index c04be8b..59c83e1 100644
--- a/pkg/sync/pull.go
+++ b/pkg/sync/pull.go
@@ -461,7 +461,7 @@ func NewPuller(remoteUri string, localDir string) (*Puller, error) {
 		RemoteUri:   remoteUri,
 		LocalDir:    localDir,
 		workingDir:  filepath.Join(localDir, ".objinsync"),
-		defaultMode: 0666,
+		defaultMode: 0664,
 		workerCnt:   5,
 		uidCache:    map[string]string{},
 		uidLock:     &sync.Mutex{},