diff --git a/iguana/iguana_ramchain.c b/iguana/iguana_ramchain.c
index 6670e95e7..4ee760656 100755
--- a/iguana/iguana_ramchain.c
+++ b/iguana/iguana_ramchain.c
@@ -2495,13 +2495,15 @@ int32_t iguana_mapchaininit(char *fname,struct iguana_info *coin,struct iguana_r
 int32_t iguana_bundlesaveHT(struct supernet_info *myinfo,struct iguana_info *coin,struct OS_memspace *mem,struct OS_memspace *memB,struct iguana_bundle *bp,uint32_t starttime) // helper thread
 {
     static int depth;
-    RAMCHAIN_DESTDECLARE; RAMCHAIN_DECLARE; RAMCHAIN_ZEROES;
+    RAMCHAIN_DESTDECLARE; RAMCHAIN_DECLARE; RAMCHAIN_ZEROES; struct iguana_blockRO _destB;
     void **ptrs; long *filesizes; uint32_t *ipbits; char fname[1024];
     struct iguana_ramchain *R,*mapchain,*dest,newchain; uint32_t fpipbits; bits256 prevhash2;
     int32_t i,starti,endi,bp_n,numtxids,valid,sigspace,pubkeyspace,numunspents,numspends,numpkinds,numexternaltxids,scriptspace; struct iguana_block *block; long fpos;
     struct OS_memspace HASHMEM; int32_t err,j,num,bundlei,firsti= 1,retval = -1;
     memset(&HASHMEM,0,sizeof(HASHMEM));
     starti = 0, endi = bp->n - 1;
+    destB = &_destB;
+    memset(destB,0,sizeof(*destB));
     //B = 0, Ux = 0, Sx = 0, P = 0, A = 0, X = 0, Kspace = TXbits = PKbits = 0, U = 0, S = 0, T = 0;
     R = mycalloc('s',bp->n,sizeof(*R));
     ptrs = mycalloc('w',bp->n,sizeof(*ptrs));