diff --git a/.gitignore b/.gitignore
index 78f7f6b..0707e20 100644
--- a/.gitignore
+++ b/.gitignore
@@ -29,5 +29,6 @@ __pycache__/
 
 # Other
 *.swp
+*.tmp
 .DS_Store
 /try/
diff --git a/Makefile b/Makefile
index 3b3b30a..f69335c 100644
--- a/Makefile
+++ b/Makefile
@@ -437,6 +437,7 @@ start_branch:
 	git add changes/noissue.$(VERSION).notshown.rst
 	git commit -asm "Start $(VERSION)"
 	git push --set-upstream origin start_$(VERSION)
+	rm -f branch.tmp
 	@echo "Done: Pushed the start branch to GitHub - now go there and create a PR."
 	@echo "Makefile: $@ done."