diff --git a/.gitignore b/.gitignore
index 92ccec6b2..53b816877 100644
--- a/.gitignore
+++ b/.gitignore
@@ -35,3 +35,10 @@ tests/cpp_tests/svg_renderer_tests/path_element_test
 tests/cpp_tests/svg_renderer_tests/path_element_test_case_1.svg
 tests/cpp_tests/svg_renderer_tests/root_element_test
 tests/data/sqlite/*index
+demo/c++/cairo-demo.pdf
+demo/c++/cairo-demo.png
+demo/c++/cairo-demo256.png
+demo/c++/demo.jpg
+demo/c++/demo.png
+demo/c++/demo256.png
+