diff --git a/CHANGES b/CHANGES
index 83c2e072d..5886a0cdf 100644
--- a/CHANGES
+++ b/CHANGES
@@ -39,6 +39,7 @@ Bugs fixed
 * #2361: Fix additional paragraphs inside the "compound" directive are indented
 * #2364: Fix KeyError 'rootSymbol' on Sphinx upgrade from older version.
 * #2348: Move amsmath and amssymb to before fontpkg on LaTeX writer.
+* #2368: Ignore emacs lock files like ``.#foo.rst`` by default.
 
 Documentation
 -------------
diff --git a/sphinx/environment.py b/sphinx/environment.py
index 0f086fb09..20e878414 100644
--- a/sphinx/environment.py
+++ b/sphinx/environment.py
@@ -391,7 +391,7 @@ class BuildEnvironment:
             config.exclude_patterns[:] +
             config.templates_path +
             config.html_extra_path +
-            ['**/_sources', '.#*', '*.lproj/**']
+            ['**/_sources', '.#*', '**/.#*', '*.lproj/**']
         )
         self.found_docs = set(get_matching_docs(
             self.srcdir, config.source_suffix, exclude_matchers=matchers))