--- a/ui/motif/toolkit.c	Sun Jan 11 14:59:15 2026 +0100
+++ b/ui/motif/toolkit.c	Sun Jan 11 15:10:20 2026 +0100
@@ -39,6 +39,7 @@
 #include "../common/document.h"
 #include "../common/properties.h"
 #include "../common/app.h"
+#include "../common/threadpool.h"
 #include <cx/buffer.h>
 
 #include <X11/Intrinsic.h>