indent.js.diff

diff --git a/lib/rules/indent.js b/lib/rules/indent.js
index 20b2477..f020747 100644
--- a/lib/rules/indent.js
+++ b/lib/rules/indent.js
@@ -42,6 +42,7 @@ module.exports = function(context) {
     var indentType = "space";
     var indentSize = 4;
     var options = {
+        IndentRootIIFE: true,
         SwitchCase: 0,
         VariableDeclarator: {
             var: DEFAULT_VARIABLE_INDENT,
@@ -61,6 +62,9 @@ module.exports = function(context) {
 
         if (context.options[1]) {
             var opts = context.options[1];
+            if (typeof opts.IndentRootIIFE !== "undefined") {
+                options.IndentRootIIFE = opts.IndentRootIIFE;
+            }
             options.SwitchCase = opts.SwitchCase || 0;
             var variableDeclaratorRules = opts.VariableDeclarator;
             if (typeof variableDeclaratorRules === "number") {
@@ -345,8 +349,28 @@ module.exports = function(context) {
             }
         }
 
-        // function body indent should be indent + indent size
-        indent += indentSize;
+        var indentBody = true;
+        if (!options.IndentRootIIFE) {
+            var parentExpression;
+            if (calleeNode.parent.type === "CallExpression" && calleeNode === calleeNode.parent.callee) {
+                parentExpression = calleeNode.parent;
+            } else if (calleeNode.parent.type === "MemberExpression" && calleeNode.parent.parent.type === "CallExpression") {
+                parentExpression = calleeNode.parent.parent;
+            }
+            if (parentExpression) {
+                if (parentExpression.parent.type === "UnaryExpression") {
+                    parentExpression = parentExpression.parent;
+                }
+                if (parentExpression.parent.type === "ExpressionStatement" && parentExpression.parent.parent.type === "Program") {
+                    indentBody = false;
+                }
+            }
+        }
+
+        if (indentBody) {
+            // function body indent should be indent + indent size
+            indent += indentSize;
+        }
 
         // check if the node is inside a variable
         var parentVarNode = getVariableDeclaratorNode(node);
@@ -358,7 +382,11 @@ module.exports = function(context) {
             checkNodesIndent(node.body, indent);
         }
 
-        checkLastNodeLineIndent(node, indent - indentSize);
+        if (indentBody) {
+            indent -= indentSize;
+        }
+
+        checkLastNodeLineIndent(node, indent);
     }
 
 
@@ -693,6 +721,9 @@ module.exports.schema = [
     {
         "type": "object",
         "properties": {
+            "IndentRootIIFE": {
+                "type": "boolean"
+            },
             "SwitchCase": {
                 "type": "integer"
             },