diff --git a/overviewer_core/util.py b/overviewer_core/util.py
index d22b4a7..6c2c416 100644
--- a/overviewer_core/util.py
+++ b/overviewer_core/util.py
@@ -20,6 +20,7 @@ Misc utility routines used by multiple files that don't belong anywhere else
 import imp
 import os.path
 import sys
+import platform
 from subprocess import Popen, PIPE
 from itertools import cycle, islice, product