diff --git a/cmd/ja4sentinel/main.go b/cmd/ja4sentinel/main.go
index e3caba1..a8565ec 100644
--- a/cmd/ja4sentinel/main.go
+++ b/cmd/ja4sentinel/main.go
@@ -94,6 +94,7 @@ func main() {
 			"interface": appConfig.Core.Interface,
 		})
 		err := captureEngine.Run(appConfig.Core, packetChan)
+		close(packetChan) // Close channel to signal packet processor to shut down
 		captureErrChan <- err
 	}()