diff --git a/registry/storage/driver/azure/azure.go b/registry/storage/driver/azure/azure.go
index b06b08764..b081f31b4 100644
--- a/registry/storage/driver/azure/azure.go
+++ b/registry/storage/driver/azure/azure.go
@@ -111,6 +111,7 @@ func (d *driver) GetContent(ctx context.Context, path string) ([]byte, error) {
 		return nil, err
 	}
 
+	defer blob.Close()
 	return ioutil.ReadAll(blob)
 }