diff --git a/extension/content.ts b/extension/content.ts
index d75efec..a504150 100644
--- a/extension/content.ts
+++ b/extension/content.ts
@@ -29,7 +29,7 @@ function fixupSiteStyles() {
             .assigned-label-transphobic { outline: 2px solid var(--ShinigamiEyesTransphobic) !important; }
             .assigned-label-t-friendly { outline: 1px solid var(--ShinigamiEyesTFriendly) !important; }
         `);
-    } else if (hostname == 'rationalwiki.org' || hostname.endsWith('wikipedia.org')) {
+    } else if (hostname == 'rationalwiki.org' || domainIs(hostname, 'wikipedia.org')) {
         addStyleSheet(`
             .assigned-label-transphobic { outline: 1px solid var(--ShinigamiEyesTransphobic) !important; }
             .assigned-label-t-friendly { outline: 1px solid var(--ShinigamiEyesTFriendly) !important; }