diff --git a/bio/core/bgzf/block.d b/bio/core/bgzf/block.d
index d5ab9de..55b3cec 100644
--- a/bio/core/bgzf/block.d
+++ b/bio/core/bgzf/block.d
@@ -106,9 +106,11 @@ class DecompressedBgzfBlock {
     end_offset = end;
     decompressed_data = buf;
   }
+  /*
   ~this() {
     stderr.writeln("destroy DecompressedBgzfBlock ",start_offset,":",end_offset," ",decompressed_data.sizeof);
   };
+  */
 
   ulong start_offset;
   ulong end_offset;
diff --git a/bio/core/bgzf/inputstream.d b/bio/core/bgzf/inputstream.d
index 4d12b2b..12985fa 100644
--- a/bio/core/bgzf/inputstream.d
+++ b/bio/core/bgzf/inputstream.d
@@ -469,7 +469,7 @@ class BgzfInputStream : Stream {
             n_tasks = max(n_tasks, buffer_size / BGZF_MAX_BLOCK_SIZE);
         // n_tasks is 13 on my machine
         _tasks = RoundBuf!BlockAux(n_tasks);
-        _task_buf = uninitializedArray!(DecompressionTask[])(n_tasks);
+        // _task_buf = uninitializedArray!(DecompressionTask[])(n_tasks);
 
         _data = uninitializedArray!(ubyte[])(n_tasks * _max_block_size);