diff --git a/src/lint/linter/xhpast/rules/ArcanistDeprecationXHPASTLinterRule.php b/src/lint/linter/xhpast/rules/ArcanistDeprecationXHPASTLinterRule.php
--- a/src/lint/linter/xhpast/rules/ArcanistDeprecationXHPASTLinterRule.php
+++ b/src/lint/linter/xhpast/rules/ArcanistDeprecationXHPASTLinterRule.php
@@ -20,7 +20,7 @@
       'xhpast.deprecated.functions' => array(
         'type' => 'optional map<string, string>',
         'help' => pht(
-          'Functions which should should be considered deprecated.'),
+          'Functions which should be considered deprecated.'),
       ),
     );
   }
diff --git a/src/lint/linter/xhpast/rules/ArcanistUnsafeDynamicStringXHPASTLinterRule.php b/src/lint/linter/xhpast/rules/ArcanistUnsafeDynamicStringXHPASTLinterRule.php
--- a/src/lint/linter/xhpast/rules/ArcanistUnsafeDynamicStringXHPASTLinterRule.php
+++ b/src/lint/linter/xhpast/rules/ArcanistUnsafeDynamicStringXHPASTLinterRule.php
@@ -21,14 +21,14 @@
       'xhpast.dynamic-string.classes' => array(
         'type' => 'optional map<string, string>',
         'help' => pht(
-          'Classes which should should not be used because they represent the '.
+          'Classes which should not be used because they represent the '.
           'unsafe usage of dynamic strings.'),
       ),
       'xhpast.dynamic-string.functions' => array(
         'type' => 'optional map<string, string>',
         'help' => pht(
-          'Functions which should should not be used because they represent '.
-          'the unsafe usage of dynamic strings.'),
+          'Functions which should not be used because they represent the '.
+          'unsafe usage of dynamic strings.'),
       ),
     );