diff --git a/meta/lib/oeqa/runtime/cases/parselogs.py b/meta/lib/oeqa/runtime/cases/parselogs.py
index 50101b78513..b81acdd18a2 100644
--- a/meta/lib/oeqa/runtime/cases/parselogs.py
+++ b/meta/lib/oeqa/runtime/cases/parselogs.py
@@ -303,7 +303,7 @@ class ParseLogsTest(OERuntimeTestCase):
         grepcmd = 'grep '
         grepcmd += '-Ei "'
         for error in errors:
-            grepcmd += '\<' + error + '\>' + '|'
+            grepcmd += r'\<' + error + r'\>' + '|'
         grepcmd = grepcmd[:-1]
         grepcmd += '" ' + str(log) + " | grep -Eiv \'"
 
@@ -314,13 +314,13 @@ class ParseLogsTest(OERuntimeTestCase):
             errorlist = ignore_errors['default']
 
         for ignore_error in errorlist:
-            ignore_error = ignore_error.replace('(', '\(')
-            ignore_error = ignore_error.replace(')', '\)')
+            ignore_error = ignore_error.replace('(', r'\(')
+            ignore_error = ignore_error.replace(')', r'\)')
             ignore_error = ignore_error.replace("'", '.')
-            ignore_error = ignore_error.replace('?', '\?')
-            ignore_error = ignore_error.replace('[', '\[')
-            ignore_error = ignore_error.replace(']', '\]')
-            ignore_error = ignore_error.replace('*', '\*')
+            ignore_error = ignore_error.replace('?', r'\?')
+            ignore_error = ignore_error.replace('[', r'\[')
+            ignore_error = ignore_error.replace(']', r'\]')
+            ignore_error = ignore_error.replace('*', r'\*')
             ignore_error = ignore_error.replace('0-9', '[0-9]')
             grepcmd += ignore_error + '|'
         grepcmd = grepcmd[:-1]