diff --git a/acorn_loose.js b/acorn_loose.js
index 1c6fb46fd6..b7bc56dd4f 100644
--- a/acorn_loose.js
+++ b/acorn_loose.js
@@ -606,7 +606,7 @@
         if (curLineStart != line && curIndent <= startIndent && tokenStartsLine())
           node.property = dummyIdent();
         else
-          node.property = parsePropertyName() || dummyIdent();
+          node.property = parsePropertyAccessor() || dummyIdent();
         node.computed = false;
         base = finishNode(node, "MemberExpression");
       } else if (token.type == tt.bracketL) {
@@ -735,6 +735,10 @@
     if (token.type === tt.name || token.type.keyword) return parseIdent();
   }
 
+  function parsePropertyAccessor() {
+    if (token.type === tt.name || token.type.keyword) return parseIdent();
+  }
+
   function parseIdent() {
     var node = startNode();
     node.name = token.type === tt.name ? token.value : token.type.keyword;