diff --git a/esprima.js b/esprima.js
index cdca07fe2..2a190f494 100644
--- a/esprima.js
+++ b/esprima.js
@@ -650,12 +650,7 @@ parseStatement: true, parseSourceElement: true */
         if (id.length === 1) {
             type = Token.Identifier;
         } else if (isKeyword(id)) {
-            // A keyword can not contained escaped characters.
-            if (index - start === id.length) {
-                type = Token.Keyword;
-            } else {
-                type = Token.Identifier;
-            }
+            type = Token.Keyword;
         } else if (id === 'null') {
             type = Token.NullLiteral;
         } else if (id === 'true' || id === 'false') {
diff --git a/test/test.js b/test/test.js
index 28092aa39..f26c0aa9a 100644
--- a/test/test.js
+++ b/test/test.js
@@ -20281,13 +20281,6 @@ var testFixture = {
             message: 'Error: Line 1: Parameter name eval or arguments is not allowed in strict mode'
         },
 
-        '\\u0066unction a(if) { }': {
-            index: 14,
-            lineNumber: 1,
-            column: 15,
-            message: 'Error: Line 1: Unexpected identifier'
-        },
-
         'function t(if) { }': {
             index: 11,
             lineNumber: 1,