diff --git a/hwi-qt.spec b/hwi-qt.spec
index ef34360..b0e8418 100644
--- a/hwi-qt.spec
+++ b/hwi-qt.spec
@@ -1,6 +1,7 @@
 # -*- mode: python ; coding: utf-8 -*-
 
 import platform
+import subprocess
 
 block_cipher = None