diff --git a/include/ircd/js.h b/include/ircd/js.h
index f0e5c5119..a4ea39a3f 100644
--- a/include/ircd/js.h
+++ b/include/ircd/js.h
@@ -55,3 +55,27 @@ struct init
 
 } // namespace js
 } // namespace ircd
+
+#ifndef RB_ENABLE_JS
+//
+// Stub definitions for when JS isn't enabled because the definition
+// file is not compiled at all.
+//
+
+inline
+ircd::js::init::init()
+{
+}
+
+inline
+ircd::js::init::~init()
+{
+}
+
+inline
+const char *ircd::js::version(const ver &ver)
+{
+	return "DISABLED";
+}
+
+#endif // !RB_ENABLE_JS