diff --git a/setup.py b/setup.py
index 66c3c80..efbe2e2 100644
--- a/setup.py
+++ b/setup.py
@@ -106,7 +106,9 @@ class compile_scss(Command):
                         if filename.startswith('_'):
                             continue
                         subprocess.check_call([sass_bin, '%s/%s' % (path, filename),
-                            '%s/%s' % (path, filename.replace('.scss', '.css'))])
+                            '%s/%s' % (path, filename.replace('.scss', '.css'))],
+                            env={'LC_ALL': 'C.UTF-8'}
+                            )
 
 
 class build_icons(Command):