diff --git a/pyrelacs/dataio/nix_writer.py b/pyrelacs/dataio/nix_writer.py
index 6bd0be5..be84a79 100644
--- a/pyrelacs/dataio/nix_writer.py
+++ b/pyrelacs/dataio/nix_writer.py
@@ -1,3 +1,4 @@
+import time
 from IPython import embed
 import nixio
 
@@ -17,15 +18,21 @@ class NixWriter:
         chunk = 1000
         log.debug("Starting the writing")
         self.write = True
+
+        total_count = self.buffer.totalcount()
         while self.write:
-            # log.debug(items)
-            try:
-                data, _ = self.buffer.read(items, extend=chunk)
-                self.data_array.append(data)
-            except IndexError as e:
-                # log.debug(f"{e}")
+            if total_count - items >= chunk:
+                log.debug(items)
+                try:
+                    data, _ = self.buffer.read(items, extend=chunk)
+                    self.data_array.append(data)
+                except IndexError as e:
+                    time.sleep(0.01)
+                    log.debug(f"{e}")
+                items += chunk
+            else:
+                time.sleep(0.01)
                 continue
-            items += chunk
         log.debug("Stoppint the writing")
         log.debug(f"Samples written {items}")
         self.nix_file.close()