diff --git a/bootstrapvz/plugins/puppet/tasks.py b/bootstrapvz/plugins/puppet/tasks.py
index 58d9424..28ad810 100644
--- a/bootstrapvz/plugins/puppet/tasks.py
+++ b/bootstrapvz/plugins/puppet/tasks.py
@@ -147,7 +147,7 @@ class ApplyPuppetManifest(Task):
         log_check_call(['chroot', info.root, 'puppet', 'apply', '--verbose', '--debug', manifest_path])
         os.remove(manifest_dst)
         hosts_path = os.path.join(info.root, 'etc/hosts')
-        sed_i(hosts_path, '127.0.0.1\\s*{hostname}\n?'.format(hostname=hostname), '')
+        sed_i(hosts_path, r'127.0.0.1\s*{hostname}\n?'.format(hostname=hostname), '')
 
 
 class EnableAgent(Task):
diff --git a/bootstrapvz/providers/ec2/tasks/boot.py b/bootstrapvz/providers/ec2/tasks/boot.py
index 3b630c1..9ef6493 100644
--- a/bootstrapvz/providers/ec2/tasks/boot.py
+++ b/bootstrapvz/providers/ec2/tasks/boot.py
@@ -53,7 +53,7 @@ class CreatePVGrubCustomRule(Task):
             grub_device = 'GRUB_DEVICE=/dev/xvda' + str(root_idx)
             sed_i(script_dst, '^GRUB_DEVICE=/dev/xvda$', grub_device)
             grub_root = '\troot (hd0,{idx})'.format(idx=root_idx - 1)
-            sed_i(script_dst, '^\troot \\(hd0\\)$', grub_root)
+            sed_i(script_dst, r'^\troot \(hd0\)$', grub_root)
 
         if info.manifest.volume['backing'] == 's3':
             from bootstrapvz.common.tools import sed_i