diff --git a/filestore/filestore.go b/filestore/filestore.go
index f428ec6..4fba952 100644
--- a/filestore/filestore.go
+++ b/filestore/filestore.go
@@ -16,7 +16,7 @@ import (
 	"github.com/tus/tusd/uid"
 )
 
-var defaultFilePerm = os.FileMode(0666)
+var defaultFilePerm = os.FileMode(0775)
 
 // See the tusd.DataStore interface for documentation about the different
 // methods.
diff --git a/tusd/main.go b/tusd/main.go
index f375e79..660b85c 100644
--- a/tusd/main.go
+++ b/tusd/main.go
@@ -9,7 +9,7 @@ import (
 
 func main() {
 
-	if err := os.MkdirAll("./data/", os.FileMode(0666)); err != nil {
+	if err := os.MkdirAll("./data/", os.FileMode(0775)); err != nil {
 		panic(err)
 	}