diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
new file mode 100644
index 000000000..9e4293b54
--- /dev/null
+++ b/.git-blame-ignore-revs
@@ -0,0 +1,3 @@
+# .git-blame-ignore-revs (see https://git-scm.com/docs/git-blame#Documentation/git-blame.txt---ignore-revs-fileltfilegt)
+# reformats sysdeps/managarm
+c2e79bcb5270ef51b8d79534036c6df0a1894a91