diff --git a/Python.gitignore b/Python.gitignore
index 70fc64d6..cf332868 100644
--- a/Python.gitignore
+++ b/Python.gitignore
@@ -53,6 +53,9 @@ coverage.xml
 *.log
 local_settings.py
 
+# Flask instance folder
+instance/
+
 # Sphinx documentation
 docs/_build/