diff --git a/lib/protomatter b/lib/protomatter
index ed2e701871..c9c1189e9d 160000
--- a/lib/protomatter
+++ b/lib/protomatter
@@ -1 +1 @@
-Subproject commit ed2e7018718caebba2b7550517b556e7734357ef
+Subproject commit c9c1189e9d6200bb09bf4a87d84be9459cae481b