diff --git a/clang-tools-extra/clang-tidy/tool/run-clang-tidy.py b/clang-tools-extra/clang-tidy/tool/run-clang-tidy.py
--- a/clang-tools-extra/clang-tidy/tool/run-clang-tidy.py
+++ b/clang-tools-extra/clang-tidy/tool/run-clang-tidy.py
@@ -78,10 +78,12 @@
 
 
 def get_tidy_invocation(f, clang_tidy_binary, checks, tmpdir, build_path,
-                        header_filter, extra_arg, extra_arg_before, quiet,
-                        config):
+                        header_filter, allow_enabling_alpha_checkers,
+                        extra_arg, extra_arg_before, quiet, config):
   """Gets a command line for clang-tidy."""
   start = [clang_tidy_binary]
+  if allow_enabling_alpha_checkers is not None:
+    start.append('-allow-enabling-analyzer-alpha-checkers')
   if header_filter is not None:
     start.append('-header-filter=' + header_filter)
   if checks:
@@ -159,6 +161,7 @@
     name = queue.get()
     invocation = get_tidy_invocation(name, args.clang_tidy_binary, args.checks,
                                      tmpdir, build_path, args.header_filter,
+                                     args.allow_enabling_alpha_checkers,
                                      args.extra_arg, args.extra_arg_before,
                                      args.quiet, args.config)
 
@@ -179,6 +182,9 @@
                                    'in a compilation database. Requires '
                                    'clang-tidy and clang-apply-replacements in '
                                    '$PATH.')
+  parser.add_argument('-allow-enabling-alpha-checkers',
+                      action='store_true', help='allow alpha checkers from '
+                                                'clang-analyzer.')
   parser.add_argument('-clang-tidy-binary', metavar='PATH',
                       default='clang-tidy',
                       help='path to clang-tidy binary')
@@ -238,6 +244,8 @@
 
   try:
     invocation = [args.clang_tidy_binary, '-list-checks']
+    if args.allow_enabling_alpha_checkers:
+      invocation.append('-allow-enabling-analyzer-alpha-checkers')
     invocation.append('-p=' + build_path)
     if args.checks:
       invocation.append('-checks=' + args.checks)