diff --git a/.gitignore b/.gitignore
index 3c820f9..aa3f2b1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,3 +14,17 @@ build/
 .idea/
 .vscode/
 *.swp
+# Generated by debhelper during build
+debian/.debhelper/
+debian/debhelper-build-stamp
+debian/postit.debhelper.log
+debian/postit.substvars
+
+# Staging tree for dh_install
+debian/tmp/
+
+# Built .deb artifacts that fall outside the source tree (dpkg-buildpackage
+# drops them next to the parent dir)
+postit_*.deb
+postit_*.changes
+postit_*.buildinfo