diff --git a/CHANGELOG.md b/CHANGELOG.md
index ab4c3127e..bceb14b0f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,5 @@
+- Track preprocessing flag in the map matching plugin.
+
 # 5.7.0
   - Changes from 5.6
     - NodeJs Bindings