diff --git a/static/rouen/_custom.scss b/static/rouen/_custom.scss
index cc287f9..91c6d57 100644
--- a/static/rouen/_custom.scss
+++ b/static/rouen/_custom.scss
@@ -1,3 +1,4 @@
+@charset "UTF-8";
 @import '../../publik-base-theme/static/includes/font-roboto';
 
 @font-face {