diff --git a/library/constant_time_internal.h b/library/constant_time_internal.h
index bbb3a90..a550b38 100644
--- a/library/constant_time_internal.h
+++ b/library/constant_time_internal.h
@@ -221,6 +221,13 @@
  * offset_secret, but only on \p offset_min, \p offset_max and \p len.
  * Functionally equivalent to `memcpy(dst, src + offset_secret, len)`.
  *
+ * \note                This function reads from \p dest, but the value that
+ *                      is read does not influence the result and this
+ *                      function's behavior is well-defined regardless of the
+ *                      contents of the buffers. This may result in false
+ *                      positives from static or dynamic analyzers, especially
+ *                      if \p dest is not initialized.
+ *
  * \param dest          The destination buffer. This must point to a writable
  *                      buffer of at least \p len bytes.
  * \param src           The base of the source buffer. This must point to a