diff --git a/experimental/graphdb/.gitignore b/experimental/graphdb/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..485dee64bcfb48793379b200a1afd14e85a8aaf4
--- /dev/null
+++ b/experimental/graphdb/.gitignore
@@ -0,0 +1 @@
+.idea