diff --git a/kindlecomicconverter/KCC_gui.py b/kindlecomicconverter/KCC_gui.py
index 8448903..b7a8dc0 100644
--- a/kindlecomicconverter/KCC_gui.py
+++ b/kindlecomicconverter/KCC_gui.py
@@ -18,6 +18,7 @@
 # PERFORMANCE OF THIS SOFTWARE.
 import os
 import re
+import subprocess
 import sys
 from urllib.parse import unquote
 from time import sleep