diff --git a/src/xrt/auxiliary/meson.build b/src/xrt/auxiliary/meson.build
index 8584b51ef..af12a50b2 100644
--- a/src/xrt/auxiliary/meson.build
+++ b/src/xrt/auxiliary/meson.build
@@ -64,6 +64,9 @@ lib_aux_util = static_library(
 		'util/u_sink_queue.c',
 		'util/u_sink_quirk.c',
 		'util/u_sink_split.c',
+		'util/u_string_list.cpp',
+		'util/u_string_list.h',
+		'util/u_string_list.hpp',
 		'util/u_time.cpp',
 		'util/u_time.h',
 		'util/u_timing.h',