diff --git a/cmd/tusd/cli/composer.go b/cmd/tusd/cli/composer.go
index 492433b..b68d090 100644
--- a/cmd/tusd/cli/composer.go
+++ b/cmd/tusd/cli/composer.go
@@ -25,7 +25,7 @@ func CreateComposer() {
 		dir := Flags.UploadDir
 
 		stdout.Printf("Using '%s' as directory storage.\n", dir)
-		if err := os.MkdirAll(dir, os.FileMode(0775)); err != nil {
+		if err := os.MkdirAll(dir, os.FileMode(0774)); err != nil {
 			stderr.Fatalf("Unable to ensure directory exists: %s", err)
 		}
 
diff --git a/filestore/filestore.go b/filestore/filestore.go
index 5dfe299..b676633 100644
--- a/filestore/filestore.go
+++ b/filestore/filestore.go
@@ -28,7 +28,7 @@ import (
 	"github.com/nightlyone/lockfile"
 )
 
-var defaultFilePerm = os.FileMode(0775)
+var defaultFilePerm = os.FileMode(0664)
 
 // See the tusd.DataStore interface for documentation about the different
 // methods.