diff --git a/tools/patman/commit.py b/tools/patman/commit.py
index 684225c..ce37a3d 100644
--- a/tools/patman/commit.py
+++ b/tools/patman/commit.py
@@ -6,7 +6,7 @@
 import re
 
 # Separates a tag: at the beginning of the subject from the rest of it
-re_subject_tag = re.compile('([^:\s]*):\s*(.*)')
+re_subject_tag = re.compile(r'([^:\s]*):\s*(.*)')
 
 class Commit:
     """Holds information about a single commit/patch in the series.
diff --git a/tools/patman/patchstream.py b/tools/patman/patchstream.py
index a09ae9c..4955f6a 100644
--- a/tools/patman/patchstream.py
+++ b/tools/patman/patchstream.py
@@ -48,7 +48,7 @@
 RE_COMMIT = re.compile('^commit ([0-9a-f]*)$')
 
 # We detect these since checkpatch doesn't always do it
-RE_SPACE_BEFORE_TAB = re.compile('^[+].* \t')
+RE_SPACE_BEFORE_TAB = re.compile(r'^[+].* \t')
 
 # Match indented lines for changes
 RE_LEADING_WHITESPACE = re.compile(r'^\s')