diff --git a/OpenBCI_GUI/BoardBrainflow.pde b/OpenBCI_GUI/BoardBrainflow.pde
index 0908ffa46..382dc8a9e 100644
--- a/OpenBCI_GUI/BoardBrainflow.pde
+++ b/OpenBCI_GUI/BoardBrainflow.pde
@@ -106,6 +106,9 @@ abstract class BoardBrainFlow extends Board {
         }
         try {
             boardShim.stop_stream();
+            if (!brainflowStreamer.isEmpty()) {
+                boardShim.delete_streamer(brainflowStreamer);
+            }
             streaming = false;
             time_last_datapoint = -1.0;
         }