diff --git a/USER_MANUAL.html b/USER_MANUAL.html
index cf2535f6..116e5b7f 100644
--- a/USER_MANUAL.html
+++ b/USER_MANUAL.html
@@ -581,7 +581,7 @@ FMA             -       Supports FMA extensions using YMM state</code></pre>
 <li>Build system:
 <ul>
 <li>Build Git version of Hamlib for Windows builds. (PR #261)</li>
-<li>Refactor CMakeList.txt using newer project format. (PR #268)</li>
+<li>Remove build date and time from libsox. (PR #267)</li>
 </ul></li>
 </ol>
 <h2 id="v1.8.2-july-2022"><span class="header-section-number">16.2</span> V1.8.2 July 2022</h2>
diff --git a/USER_MANUAL.md b/USER_MANUAL.md
index beb8c547..9e29f3ea 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)
     * Refactor CMakeList.txt using newer project format. (PR #268)
     
 ## V1.8.2 July 2022
diff --git a/USER_MANUAL.pdf b/USER_MANUAL.pdf
index 318a2332..523977cb 100644
Binary files a/USER_MANUAL.pdf and b/USER_MANUAL.pdf differ
diff --git a/src/sox/libsox.c b/src/sox/libsox.c
index 8e9ebad6..b561012e 100644
--- a/src/sox/libsox.c
+++ b/src/sox/libsox.c
@@ -66,7 +66,7 @@ sox_version_info_t const * sox_version_info(void)
         NULL,
 #endif
         /* sox_time */
-        __DATE__ " " __TIME__,
+        NULL,
         /* sox_distro */
 #ifdef DISTRO
         DISTRO,