diff --git a/.gitignore b/.gitignore
index 24f3f3937d..30c448d5db 100644
--- a/.gitignore
+++ b/.gitignore
@@ -27,6 +27,7 @@ TAGS
 *.swn
 *.swo
 *.swp
+.gdb_history
 
 # generated by patch
 *.orig
diff --git a/racket/src/expander/.gitignore b/racket/src/expander/.gitignore
new file mode 100644
index 0000000000..ccdfebd585
--- /dev/null
+++ b/racket/src/expander/.gitignore
@@ -0,0 +1 @@
+cache-dir