1 files changed, 1 insertions, 1 deletions
diff --git a/bignum.c b/bignum.c
index 8fb76951e9..a4af506651 100644
--- a/bignum.c
+++ b/bignum.c
@@ -2800,7 +2800,7 @@ bary_divmod(BDIGIT *qds, size_t qn, BDIGIT *rds, size_t rn, const BDIGIT *xds, s
         if (xn + extra_words <= qn)
             zds = qds;
         else
-            zds = ALLOCV_N(BDIGIT, tmpz, xn + extra_words);
+            zds = ALLOCV_N(BDIGIT, tmpz, zn);
         MEMCPY(zds, xds, BDIGIT, xn);
         BDIGITS_ZERO(zds+xn, zn-xn);