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diff --git a/src/lib/util/value.c b/src/lib/util/value.c
index 9dde09af00132cf7d532a3d90777196b46769eed..5488a2888bb950cb76a9417dca11625b3566a9be 100644 (file)
--- a/src/lib/util/value.c
+++ b/src/lib/util/value.c
@@ -3489,7 +3489,7 @@ int fr_value_box_bstr_alloc(TALLOC_CTX *ctx, char **out, fr_value_box_t *dst, fr
  * @param[in] ctx      to realloc buffer in.
  * @param[out] out     if non-null where to write a pointer to the new buffer.
  * @param[in] dst      to realloc buffer for.
- * @param[in] len      to realloc to.
+ * @param[in] len      to realloc to (don't include nul byte).
  * @return
  *     - 0 on success.
  *      - -1 on failure.