diff --git a/data/.gitignore b/data/.gitignore
new file mode 100644
index 00000000..e46504a6
--- /dev/null
+++ b/data/.gitignore
@@ -0,0 +1,3 @@
+input/*
+output/*
+!.gitignore
diff --git a/data/input/.gitignore b/data/input/.gitignore
deleted file mode 100644
index d6b7ef32..00000000
--- a/data/input/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-*
-!.gitignore
diff --git a/data/output/.gitignore b/data/output/.gitignore
deleted file mode 100644
index d6b7ef32..00000000
--- a/data/output/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-*
-!.gitignore