diff --git a/.gitignore b/.gitignore
index e5fc9f7..77ef3f5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,3 +30,4 @@
 *.app
 *.erl
 *.elf
+*.irx
diff --git a/demo/bin/.gitignore b/demo/bin/.gitignore
new file mode 100644
index 0000000..44c5ea8
--- /dev/null
+++ b/demo/bin/.gitignore
@@ -0,0 +1,4 @@
+# Ignore everything in this directory
+*
+# Except this file
+!.gitignore
\ No newline at end of file