diff --git a/lib/coffee-script/repl.js b/lib/coffee-script/repl.js
index 437088a6..0a24e352 100644
--- a/lib/coffee-script/repl.js
+++ b/lib/coffee-script/repl.js
@@ -75,10 +75,21 @@
     }
   };
   completeVariable = function(text) {
-    var completions, free, possibilities, vars, _ref;
-    if (free = (_ref = text.match(SIMPLEVAR)) != null ? _ref[1] : void 0) {
+    var completions, free, keywords, possibilities, r, vars, _ref;
+    free = (_ref = text.match(SIMPLEVAR)) != null ? _ref[1] : void 0;
+    if (free != null) {
       vars = Script.runInContext('Object.getOwnPropertyNames(this)', sandbox);
-      possibilities = vars.concat(CoffeeScript.RESERVED);
+      keywords = (function() {
+        var _j, _len2, _ref2, _results;
+        _ref2 = CoffeeScript.RESERVED;
+        _results = [];
+        for (_j = 0, _len2 = _ref2.length; _j < _len2; _j++) {
+          r = _ref2[_j];
+          if (r.slice(0, 2) !== '__') _results.push(r);
+        }
+        return _results;
+      })();
+      possibilities = vars.concat(keywords);
       completions = getCompletions(free, possibilities);
       return [completions, free];
     }
diff --git a/src/repl.coffee b/src/repl.coffee
index 06659c6e..a29a2398 100644
--- a/src/repl.coffee
+++ b/src/repl.coffee
@@ -94,9 +94,11 @@ completeAttribute = (text) ->
 
 # Attempt to autocomplete an in-scope free variable: `one`.
 completeVariable = (text) ->
-  if free = (text.match SIMPLEVAR)?[1]
+  free = (text.match SIMPLEVAR)?[1]
+  if free?
     vars = Script.runInContext 'Object.getOwnPropertyNames(this)', sandbox
-    possibilities = vars.concat CoffeeScript.RESERVED
+    keywords = (r for r in CoffeeScript.RESERVED when r[0..1] isnt '__')
+    possibilities = vars.concat keywords
     completions = getCompletions free, possibilities
     [completions, free]