diff --git a/.gitignore b/.gitignore
index ea01d78..b065bcb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,4 @@
 node_modules
-public/data/*
\ No newline at end of file
+public/data/*.corpus
+public/data/in
+public/data/out
\ No newline at end of file
diff --git a/public/data/.gitkeep b/public/data/.gitkeep
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/public/data/.gitkeep