diff --git a/src/runtime/.gitignore b/src/runtime/.gitignore
index ffbf8a7558..0cc78193ac 100644
--- a/src/runtime/.gitignore
+++ b/src/runtime/.gitignore
@@ -2,6 +2,7 @@
 *.patch
 *.swp
 coverage.txt
+coverage.txt.tmp
 coverage.html
 .git-commit
 .git-commit.tmp