diff --git a/sys/unix/NetHack.xcodeproj/.gitignore b/sys/unix/NetHack.xcodeproj/.gitignore
new file mode 100644
index 000000000..ab5ec3aee
--- /dev/null
+++ b/sys/unix/NetHack.xcodeproj/.gitignore
@@ -0,0 +1,2 @@
+xcuserdata
+