diff --git a/build/check.py b/build/check.py
index 040ede83df..da5e8e30aa 100755
--- a/build/check.py
+++ b/build/check.py
@@ -98,7 +98,7 @@ def check_css_lint(args):
   def get(*path_components):
     return shakaBuildHelpers.get_all_files(
         os.path.join(base, *path_components), match)
-  files = (get('ui') + get('demo'));
+  files = (get('ui') + get('demo'))
   config_path = os.path.join(base, '.csslintrc')
 
   linter = compiler.CssLinter(files, config_path)
diff --git a/build/compiler.py b/build/compiler.py
index 85c686b1c1..15ad83aea6 100644
--- a/build/compiler.py
+++ b/build/compiler.py
@@ -357,6 +357,10 @@ def lint(self, fix=False, force=False):
     deps = self.source_files + [self.config_path]
     if not force and not _must_build(self.output, deps):
       return True
+    # Windows shows an error when the file location has '\' .
+    if sys.platform == 'win32':
+      self.config_path = self.config_path.replace('\\', '/')
+      self.source_files = [f.replace('\\', '/') for f in self.source_files]
 
     stylelint = shakaBuildHelpers.get_node_binary('stylelint')
     cmd_line = stylelint + [