diff --git a/clang/include/clang/Format/.clang-format b/clang/include/clang/Format/.clang-format
--- a/clang/include/clang/Format/.clang-format
+++ b/clang/include/clang/Format/.clang-format
@@ -1,3 +1,4 @@
 BasedOnStyle: LLVM
 InsertBraces: true
+LineEnding: LF
 RemoveBracesLLVM: true
diff --git a/clang/lib/Format/.clang-format b/clang/lib/Format/.clang-format
--- a/clang/lib/Format/.clang-format
+++ b/clang/lib/Format/.clang-format
@@ -1,3 +1,4 @@
 BasedOnStyle: LLVM
 InsertBraces: true
+LineEnding: LF
 RemoveBracesLLVM: true
diff --git a/clang/unittests/Format/.clang-format b/clang/unittests/Format/.clang-format
--- a/clang/unittests/Format/.clang-format
+++ b/clang/unittests/Format/.clang-format
@@ -1,3 +1,4 @@
 BasedOnStyle: LLVM
 InsertBraces: true
+LineEnding: LF
 RemoveBracesLLVM: true