diff --git a/lld/test/MachO/tools/validate-unwind-info.py b/lld/test/MachO/tools/validate-unwind-info.py
index ac49f1ecb5889..1cc82f8279273 100755
--- a/lld/test/MachO/tools/validate-unwind-info.py
+++ b/lld/test/MachO/tools/validate-unwind-info.py
@@ -11,7 +11,7 @@
 
 
 def main():
-    hex = "[a-f\d]"
+    hex = r"[a-f\d]"
     hex8 = hex + "{8}"
 
     parser = argparse.ArgumentParser(description=__doc__)
diff --git a/lld/utils/benchmark.py b/lld/utils/benchmark.py
index a07d5ecc69417..7202e07ec438d 100755
--- a/lld/utils/benchmark.py
+++ b/lld/utils/benchmark.py
@@ -51,7 +51,7 @@ def __str__(self):
 def getBenchmarks():
     ret = []
     for i in glob.glob("*/response*.txt"):
-        m = re.match("response-(.*)\.txt", os.path.basename(i))
+        m = re.match(r"response-(.*)\.txt", os.path.basename(i))
         variant = m.groups()[0] if m else None
         ret.append(Bench(os.path.dirname(i), variant))
     return ret