diff --git a/src/pyshark/capture/capture.py b/src/pyshark/capture/capture.py
index 32765c99..922e104f 100644
--- a/src/pyshark/capture/capture.py
+++ b/src/pyshark/capture/capture.py
@@ -209,7 +209,6 @@ def _packets_from_tshark_sync(self, packet_count=None, existing_process=None):
         psml_structure, data = self.eventloop.run_until_complete(self._get_psml_struct(tshark_process.stdout))
         packets_captured = 0
 
-        data = b''
         try:
             while True:
                 try: