diff --git a/.gitignore b/.gitignore
index 7f051b8..39fb956 100644
--- a/.gitignore
+++ b/.gitignore
@@ -160,3 +160,6 @@ cython_debug/
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
 #.idea/
 .devenv
+
+# Cotengra cache
+examples/quimb_intro/ctg_cache/
\ No newline at end of file