diff --git a/app/coffee/utils.coffee b/app/coffee/utils.coffee
index 7a0ed706..4205b612 100644
--- a/app/coffee/utils.coffee
+++ b/app/coffee/utils.coffee
@@ -158,6 +158,15 @@ replaceTags = (str, tags, replace) ->
 
     return str
 
+defineImmutableProperty = (obj, name, variable) =>
+    Object.defineProperty obj, name, {
+        get: () =>
+            if _.isFunction(variable)
+                return variable.call(obj)
+            else
+                return variable
+    }
+
 taiga = @.taiga
 taiga.nl2br = nl2br
 taiga.bindMethods = bindMethods
@@ -179,3 +188,4 @@ taiga.startswith = startswith
 taiga.sizeFormat = sizeFormat
 taiga.stripTags = stripTags
 taiga.replaceTags = replaceTags
+taiga.defineImmutableProperty = defineImmutableProperty
diff --git a/app/modules/navigation-bar/dropdown-project-list/dropdown-project-list.directive.coffee b/app/modules/navigation-bar/dropdown-project-list/dropdown-project-list.directive.coffee
index b63656ee..1d596710 100644
--- a/app/modules/navigation-bar/dropdown-project-list/dropdown-project-list.directive.coffee
+++ b/app/modules/navigation-bar/dropdown-project-list/dropdown-project-list.directive.coffee
@@ -1,10 +1,10 @@
 DropdownProjectListDirective = (projectsService) ->
     link = (scope, el, attrs, ctrl) ->
         scope.vm = {}
-        scope.vm.projects = projectsService.projects
+        taiga.defineImmutableProperty(scope.vm, "projects", projectsService.projects)
         scope.vm.newProject = ->
             projectsService.newProject()
-            
+
     directive = {
         templateUrl: "navigation-bar/dropdown-project-list/dropdown-project-list.html"
         scope: {}
diff --git a/app/modules/projects/listing/listing.directive.coffee b/app/modules/projects/listing/listing.directive.coffee
index 506af5cd..4879088e 100644
--- a/app/modules/projects/listing/listing.directive.coffee
+++ b/app/modules/projects/listing/listing.directive.coffee
@@ -25,7 +25,7 @@ ProjectsListingDirective = (projectsService) ->
 
             projectsService.bulkUpdateProjectsOrder(sortData)
 
-        scope.vm.projects = projectsService.projects
+        taiga.defineImmutableProperty(scope.vm, "projects", projectsService.projects)
 
         scope.vm.newProject = ->
             projectsService.newProject()