diff --git a/scripts/runqemu b/scripts/runqemu
index 8e5d22888d..81d95133b6 100755
--- a/scripts/runqemu
+++ b/scripts/runqemu
@@ -362,7 +362,7 @@ class BaseConfig(object):
         if p.endswith('.qemuboot.conf'):
             self.qemuboot = p
             self.qbconfload = True
-        elif re.search('\.bin$', p) or re.search('bzImage', p) or \
+        elif re.search('\\.bin$', p) or re.search('bzImage', p) or \
              re.search('zImage', p) or re.search('vmlinux', p) or \
              re.search('fitImage', p) or re.search('uImage', p):
             self.kernel =  p
@@ -376,13 +376,13 @@ class BaseConfig(object):
                     fst = t
                     break
             if not fst:
-                m = re.search('.*\.(.*)$', self.rootfs)
+                m = re.search('.*\\.(.*)$', self.rootfs)
                 if m:
                     fst =  m.group(1)
             if fst:
                 self.check_arg_fstype(fst)
-                qb = re.sub('\.' + fst + "$", '', self.rootfs)
-                qb = '%s%s' % (re.sub('\.rootfs$', '', qb), '.qemuboot.conf')
+                qb = re.sub('\\.' + fst + "$", '', self.rootfs)
+                qb = '%s%s' % (re.sub('\\.rootfs$', '', qb), '.qemuboot.conf')
                 if os.path.exists(qb):
                     self.qemuboot = qb
                     self.qbconfload = True