diff --git a/datastore/sharedds.nim b/datastore/sharedds.nim
index f9d689b..68e0f4c 100644
--- a/datastore/sharedds.nim
+++ b/datastore/sharedds.nim
@@ -105,7 +105,7 @@ method close*(
     ## this can block... how to handle? maybe just leak?
     self.tds[].tp.shutdown()
 
-proc newSharedDataStore*[T: Datastore](
+proc newSharedDataStore*(
   ds: Datastore,
 ): Future[?!SharedDatastore] {.async.} =
 
@@ -120,7 +120,10 @@ proc newSharedDataStore*[T: Datastore](
     echo "\nnewDataStore: threadId:", getThreadId()
     # GC_ref(ds)
     res[].value[].ds = ds
-    res.createThreadDatastore()
+    try:
+      res[].value[].tp = Taskpool.new(num_threads = 2)
+    except Exception as exc:
+      return err((ref DatastoreError)(msg: exc.msg))
     await wait(res[].signal)
   finally:
     echo "closing signal"
diff --git a/datastore/threadbackend.nim b/datastore/threadbackend.nim
index ba91ad8..69e6e31 100644
--- a/datastore/threadbackend.nim
+++ b/datastore/threadbackend.nim
@@ -128,13 +128,3 @@ proc put*(
   print "bval: ", bval
 
   tds[].tp.spawn putTask(ret, tds[].backend, bkey, bval)
-
-proc createThreadDatastore*(ret: ThreadDatastorePtr): Result[void, ref CatchableError] =
-  try:
-    echo "createThreadDatastore: start"
-    ret[].tp = Taskpool.new(num_threads = 2)
-    echo "createThreadDatastore: done"
-
-  except Exception as exc:
-    return err((ref DatastoreError)(msg: exc.msg))
-
diff --git a/tests/datastore/testsharedds.nim b/tests/datastore/testsharedds.nim
index 5c47f43..81ef17e 100644
--- a/tests/datastore/testsharedds.nim
+++ b/tests/datastore/testsharedds.nim
@@ -1,13 +1,14 @@
 import std/options
 import std/sequtils
 import std/os
-from std/algorithm import sort, reversed
+import std/algorithm
 
 import pkg/asynctest/unittest2
 import pkg/chronos
 import pkg/stew/results
 import pkg/stew/byteutils
 
+import pkg/datastore/memoryds
 import pkg/datastore/sharedds
 
 import ./dscommontests
@@ -24,7 +25,8 @@ suite "Test Basic SharedDatastore":
     let backend = ThreadBackend(
       kind: TestBackend,
     )
-    let res = await newSharedDataStore(backend)
+    let mem = MemoryDatastore.new()
+    let res = await newSharedDataStore(mem)
     check res.isOk()
     sds = res.get()
     # echo "sds: ", repr sds