diff --git a/src/pretix/static/pretixbase/img/flags/basque.png b/src/pretix/static/pretixbase/img/flags/basque.png
new file mode 100644
index 0000000000..df1f1719dc
Binary files /dev/null and b/src/pretix/static/pretixbase/img/flags/basque.png differ
diff --git a/src/pretix/static/pretixcontrol/scss/_flags.scss b/src/pretix/static/pretixcontrol/scss/_flags.scss
index 23ec6307f6..38b1548ea5 100644
--- a/src/pretix/static/pretixcontrol/scss/_flags.scss
+++ b/src/pretix/static/pretixcontrol/scss/_flags.scss
@@ -306,3 +306,4 @@ pre[lang=za], input[lang=za], textarea[lang=za], div[lang=za] { background-image
 pre[lang=zm], input[lang=zm], textarea[lang=zm], div[lang=zm] { background-image: url(static('pretixbase/img/flags/zm.png')); }
 pre[lang=zw], input[lang=zw], textarea[lang=zw], div[lang=zw] { background-image: url(static('pretixbase/img/flags/zw.png')); }
 pre[lang=en], input[lang=en], textarea[lang=en], div[lang=en] { background-image: url(static('pretixbase/img/flags/gb.png')); }
+pre[lang=eu], input[lang=eu], textarea[lang=eu], div[lang=eu] { background-image: url(static('pretixbase/img/flags/basque.png')); }