diff --git a/desktop/prefix.h b/desktop/prefix.h
index 796b967..37201ac 100644
--- a/desktop/prefix.h
+++ b/desktop/prefix.h
@@ -351,7 +351,7 @@ struct SystemStartupDataHeader {
 	/* TODO Make mount points and devices equal, somehow? */
 	size_t initialMountPointCount;
 	size_t initialDeviceCount;
-	uintptr_t themeCursorData;
+	EsHandle themeCursorData;
 };
 
 #ifdef KERNEL