diff --git a/lib/nodes.js b/lib/nodes.js
index aec56489..f6e8467c 100644
--- a/lib/nodes.js
+++ b/lib/nodes.js
@@ -502,8 +502,8 @@
       this.base.front = this.front;
       props = this.properties;
       code = this.base.compile(o, props.length ? LEVEL_ACCESS : null);
-      if (props[0] instanceof Access && this.isSimpleNumber()) {
-        code = "(" + code + ")";
+      if ((this.base instanceof Parens || props.length) && SIMPLENUM.test(code)) {
+        code = "" + code + ".";
       }
       for (_i = 0, _len = props.length; _i < _len; _i++) {
         prop = props[_i];
diff --git a/src/nodes.coffee b/src/nodes.coffee
index 520f69d2..2d860085 100644
--- a/src/nodes.coffee
+++ b/src/nodes.coffee
@@ -402,7 +402,7 @@ exports.Value = class Value extends Base
     @base.front = @front
     props = @properties
     code  = @base.compile o, if props.length then LEVEL_ACCESS else null
-    code  = "(#{code})" if props[0] instanceof Access and @isSimpleNumber()
+    code  = "#{code}." if (@base instanceof Parens or props.length) and SIMPLENUM.test code
     code += prop.compile o for prop in props
     code
 
diff --git a/test/numbers.coffee b/test/numbers.coffee
index ff0abce4..5598313f 100644
--- a/test/numbers.coffee
+++ b/test/numbers.coffee
@@ -32,11 +32,15 @@ value = 0.0 + -.25 - -.75 + 0.0
 ok value is 0.5
 
 #764: Numbers should be indexable
+eq Number::toString,   4['toString']
 eq Number::toString, 4.2['toString']
 eq Number::toString, .42['toString']
+eq Number::toString, (4)['toString']
 
+eq Number::toString,   4.toString
 eq Number::toString, 4.2.toString
 eq Number::toString, .42.toString
+eq Number::toString, (4).toString
 
 test '#1168: leading floating point suppresses newline', ->
 	eq 1, do ->