diff --git a/preprocessor b/preprocessor
index 50782694a..ca4b1ba4e 160000
--- a/preprocessor
+++ b/preprocessor
@@ -1 +1 @@
-Subproject commit 50782694a0d32d42001ef3f3517866367a9afe6a
+Subproject commit ca4b1ba4edf1470d16005df10f067fa8ced13aad