diff --git a/compiler-rt/lib/sanitizer_common/scripts/litlint.py b/compiler-rt/lib/sanitizer_common/scripts/litlint.py
--- a/compiler-rt/lib/sanitizer_common/scripts/litlint.py
+++ b/compiler-rt/lib/sanitizer_common/scripts/litlint.py
@@ -45,7 +45,7 @@
     The number of errors detected.
   """
   errs = 0
-  with open(p, 'r') as f:
+  with open(p, 'r', encoding='utf-8') as f:
     for i, s in enumerate(f.readlines(), start=1):
       msg, col = LintLine(s)
       if msg != None: