2 files changed, 2 insertions, 4 deletions
diff --git a/Modules/_decimal/libmpdec/memory.c b/Modules/_decimal/libmpdec/memory.c
index 037ba35..bf6350f 100644
--- a/Modules/_decimal/libmpdec/memory.c
+++ b/Modules/_decimal/libmpdec/memory.c
@@ -222,7 +222,7 @@ mpd_switch_to_dyn(mpd_t *result, mpd_ssize_t nwords, uint32_t *status)
         return 0;
     }
 
-    memcpy(result->data, p, result->len * (sizeof *result->data));
+    memcpy(result->data, p, result->alloc * (sizeof *result->data));
     result->alloc = nwords;
     mpd_set_dynamic_data(result);
     return 1;
diff --git a/Modules/_decimal/libmpdec/mpdecimal.c b/Modules/_decimal/libmpdec/mpdecimal.c
index b83334e..844f238 100644
--- a/Modules/_decimal/libmpdec/mpdecimal.c
+++ b/Modules/_decimal/libmpdec/mpdecimal.c
@@ -454,9 +454,7 @@ mpd_del(mpd_t *dec)
  * Resize the coefficient. Existing data up to 'nwords' is left untouched.
  * Return 1 on success, 0 otherwise.
  *
- * Input invariants:
- *     1) MPD_MINALLOC <= result->alloc.
- *     2) 0 <= result->len <= result->alloc.
+ * Input invariant: MPD_MINALLOC <= result->alloc.
  *
  * Case nwords == result->alloc:
  *     'result' is unchanged. Return 1.