diff --git a/icebox/.gitignore b/icebox/.gitignore
index 035ca9c..0cd67f6 100644
--- a/icebox/.gitignore
+++ b/icebox/.gitignore
@@ -1,5 +1,6 @@
 chipdb-1k.txt
 chipdb-5k.txt
+chipdb-lm4k.txt
 chipdb-8k.txt
 chipdb-384.txt
 __pycache__