diff --git a/tines-gui/.gitignore b/tines-gui/.gitignore
new file mode 100644
index 00000000..71f5ff0f
--- /dev/null
+++ b/tines-gui/.gitignore
@@ -0,0 +1,3 @@
+# The root .gitignore's `/target` is anchored to the repo root; this
+# standalone crate's target dir needs its own ignore.
+/target