diff --git a/preprocessor b/preprocessor
index 69b6df8c129525e366ba462968e4e30f3a1243ca..c23991017187b342b88bbc7684576182791b2658 160000
--- a/preprocessor
+++ b/preprocessor
@@ -1 +1 @@
-Subproject commit 69b6df8c129525e366ba462968e4e30f3a1243ca
+Subproject commit c23991017187b342b88bbc7684576182791b2658