From 54d7b85cabfd97409c20c8426edeada999a2511a Mon Sep 17 00:00:00 2001
From: Joe Bryan <joemfb@gmail.com>
Date: Tue, 29 Sep 2020 12:55:06 -0700
Subject: [PATCH] u3: updates u3i_slab implementation to normalize zero-length
 allocations to 1

---
 pkg/urbit/noun/imprison.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkg/urbit/noun/imprison.c b/pkg/urbit/noun/imprison.c
index 0e1dbfd4c..8277d43e2 100644
--- a/pkg/urbit/noun/imprison.c
+++ b/pkg/urbit/noun/imprison.c
@@ -119,7 +119,7 @@ u3i_slab_bare(u3i_slab* sab_u, c3_g met_g, c3_d len_d)
 
     //  if we only need one word, use the static storage in [sab_u]
     //
-    if ( 1 == wor_w ) {
+    if ( (0 == wor_w) || (1 == wor_w) ) {
       sab_u->_._vat_u = 0;
       sab_u->buf_w    = &sab_u->_._sat_w;
       sab_u->len_w    = 1;