diff --git a/iguana/iguana_bundles.c b/iguana/iguana_bundles.c
index 489ea938c..59b9a1c0d 100755
--- a/iguana/iguana_bundles.c
+++ b/iguana/iguana_bundles.c
@@ -482,7 +482,9 @@ void iguana_bundlepurgefiles(struct iguana_info *coin,struct iguana_bundle *bp)
     {
         for (j=m=0; j<bp->n; j++)
         {
+            portable_mutex_lock(&coin->RTmutex);
             iguana_RTrawdata(coin,bp->hashes[j],0,&recvlen,&numtx,0); // delete file
+            portable_mutex_unlock(&coin->RTmutex);
             if ( iguana_peerfname(coin,&hdrsi,GLOBAL_TMPDIR,fname,ipbits,bp->hashes[j],zero,1,1) >= 0 )
             {
                 if ( (fp= fopen(fname,"rb")) != 0 )