diff --git a/.gitignore b/.gitignore
index 7ef4ca1..485b7c8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -25,9 +25,10 @@ lib/*Lexer.cpp
 lib/*Parser.cpp
 lib/*Parser.hpp
 
-# Eigen headers
-lib/Eigen/*
+# Eigen headers and archives
+lib/Eigen
 lib/eigen_files.mk
+eigen-*.tar.bz2
 
 # CI builds
 ci-scripts/local/*
diff --git a/eigen-3.3.8.tar.bz2 b/eigen-3.3.8.tar.bz2
deleted file mode 100644
index 1b8b46c..0000000
Binary files a/eigen-3.3.8.tar.bz2 and /dev/null differ