diff --git a/preprocessor b/preprocessor
index ee972d963..c4a9f93d4 160000
--- a/preprocessor
+++ b/preprocessor
@@ -1 +1 @@
-Subproject commit ee972d96388d0d8482d92bafc81daef49e3036d5
+Subproject commit c4a9f93d40abd4747a1101116729400452dfe9a3