diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
index 9ef0713ef8af..30d9f6b883ce 100644
--- a/.git-blame-ignore-revs
+++ b/.git-blame-ignore-revs
@@ -97,3 +97,6 @@ e80bc777749331e9519575f416c342f7626dd14d
 
 # NFC: clang-format test_demangle.pass.cpp but keep test "lines"
 d33bf2e9df578ff7e44fd22504d6ad5a122b7ee6
+
+# [lldb][NFC] clang-format MainLoopPosix.cpp
+66bdbfbaa08fa3d8e64a7fe136a8fb717f5cdbb7