diff --git a/modules/rsocials/components/folk-thread-builder.ts b/modules/rsocials/components/folk-thread-builder.ts
index b8bc318..4aa9b55 100644
--- a/modules/rsocials/components/folk-thread-builder.ts
+++ b/modules/rsocials/components/folk-thread-builder.ts
@@ -80,6 +80,12 @@ export class FolkThreadBuilder extends HTMLElement {
 	}
 
 	private get basePath() {
+		// On subdomain routing (e.g. jeff.rspace.online), the space is the subdomain
+		// and paths should be /rsocials/... not /jeff/rsocials/...
+		const host = window.location.hostname;
+		if (host.endsWith('.rspace.online') || host.endsWith('.rsocials.online')) {
+			return '/rsocials/';
+		}
 		return `/${this._space}/rsocials/`;
 	}