diff --git a/USER_MANUAL.md b/USER_MANUAL.md
index 307b6932..76565777 100644
--- a/USER_MANUAL.md
+++ b/USER_MANUAL.md
@@ -795,6 +795,7 @@ LDPC | Low Density Parity Check Codes - a family of powerful FEC codes
 
 1. Build system:
     * Build Git version of Hamlib for Windows builds. (PR #261)
+    * Remove build date and time from libsox. (PR #267)
     
 ## V1.8.2 July 2022