Die, Marco, die.

src/Umbraco.Web.UI.Client/src/views/propertyeditors/grid/editors/macro.controller.js

@@ -10,7 +10,7 @@ angular.module("umbraco")
                     $scope.control.value = {
                             syntax: data.syntax,
                             macroAlias: data.macroAlias,
-                            marcoParamsDictionary: data.macroParamsDictionary
+                            macroParamsDictionary: data.macroParamsDictionary
                     };
                         
                     $scope.setPreview(data);

src/Umbraco.Web.UI/Views/Partials/Grid/Editors/macro.cshtml

@@ -6,7 +6,7 @@
 {
     string macroAlias = Model.value.macroAlias.ToString();
     ViewDataDictionary parameters = new ViewDataDictionary();
-    foreach (dynamic mpd in Model.value.marcoParamsDictionary)
+    foreach (dynamic mpd in Model.value.macroParamsDictionary)
     {
         parameters.Add(mpd.Name, mpd.Value);
     }

src/Umbraco.Web/Models/PartialViewMacroModelExtensions.cs

@@ -8,7 +8,7 @@ namespace Umbraco.Web.Models
     public static class PartialViewMacroModelExtensions
     {
         /// <summary>
-        /// Attempt to get a Marco parameter from a PartialViewMacroModel and return a default value otherwise
+        /// Attempt to get a Macro parameter from a PartialViewMacroModel and return a default value otherwise
         /// </summary>
         /// <param name="partialViewMacroModel"></param>
         /// <param name="parameterAlias"></param>
@@ -25,7 +25,7 @@ namespace Umbraco.Web.Models
         }
 
         /// <summary> 
-        /// Attempt to get a Marco parameter from a PartialViewMacroModel
+        /// Attempt to get a Macro parameter from a PartialViewMacroModel
         /// </summary>
         /// <param name="partialViewMacroModel"></param>
         /// <param name="parameterAlias"></param>