diff --git a/.gitignore b/.gitignore
index 52793185..8509d3e5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,6 @@ Cargo.lock
 # MRA
 src/std/MRA_en_V1.1.1/
 src/std/list_code_e.*
+
+# tcpdump
+*.pcapng