diff --git a/lib/coffee-script/lexer.js b/lib/coffee-script/lexer.js
index cf2988fa..456cf0fa 100644
--- a/lib/coffee-script/lexer.js
+++ b/lib/coffee-script/lexer.js
@@ -712,7 +712,7 @@
 
   COFFEE_KEYWORDS = COFFEE_KEYWORDS.concat(COFFEE_ALIASES);
 
-  RESERVED = ['case', 'default', 'function', 'var', 'void', 'with', 'const', 'let', 'enum', 'export', 'import', 'native', '__hasProp', '__extends', '__slice', '__bind', '__indexOf', 'implements', 'interface', 'let', 'package', 'private', 'protected', 'public', 'static', 'yield'];
+  RESERVED = ['case', 'default', 'function', 'var', 'void', 'with', 'const', 'let', 'enum', 'export', 'import', 'native', '__hasProp', '__extends', '__slice', '__bind', '__indexOf', 'implements', 'interface', 'package', 'private', 'protected', 'public', 'static', 'yield'];
 
   STRICT_PROSCRIBED = ['arguments', 'eval'];
 
diff --git a/src/lexer.coffee b/src/lexer.coffee
index 56e8e324..2531f28c 100644
--- a/src/lexer.coffee
+++ b/src/lexer.coffee
@@ -576,11 +576,10 @@ COFFEE_KEYWORDS = COFFEE_KEYWORDS.concat COFFEE_ALIASES
 # used by CoffeeScript internally. We throw an error when these are encountered,
 # to avoid having a JavaScript error at runtime.
 RESERVED = [
-  'case', 'default', 'function', 'var', 'void', 'with'
-  'const', 'let', 'enum', 'export', 'import', 'native'
-  '__hasProp', '__extends', '__slice', '__bind', '__indexOf'
-  'implements', 'interface', 'let', 'package',
-  'private', 'protected', 'public', 'static', 'yield'
+  'case', 'default', 'function', 'var', 'void', 'with', 'const', 'let', 'enum'
+  'export', 'import', 'native', '__hasProp', '__extends', '__slice', '__bind'
+  '__indexOf', 'implements', 'interface', 'package', 'private', 'protected'
+  'public', 'static', 'yield'
 ]
 
 STRICT_PROSCRIBED = ['arguments', 'eval']