AngularJS: Why can't my directive use $ scope?

I wrote a really simple angular module that allows tabbing (code simplified but doesn't work):

module.js

define(["angular","./controller","./tabs","./pane"],function(tabsController,tabs,pane){

    var module = angular.module("tabsModule",[])
    .controller("tabsController",["$scope",tabsController])
    .directive("tabs",tabs)
    //.directive("pane",pane);
    return module;
});

      

        
        
        
      

    

tabs.js

define([], function() {
    function tabs() {
        var directive = {
            restrict: "E",
            controller: "tabsController",
            scope: true,
            templateUrl: "html/directives/tabs.html",
            link: {
                pre: function(scope, element, attrs, controller) {
                    scope.addPane = controller.addPane.bind(controller);
                    scope.select = controller.select.bind(controller);

                }
            },
            //    transclude: true,
        };
        return directive;
    }
    return tabs;
});

      

        
        
        
      

    

controller.js

define(["controllers/prototypes/base_controller"],function(BaseController){
    var TabController=BaseController.extend({
        constructor:function($scope){
            BaseController.call(this,$scope);
            this.$scope.panes = [];
            this.directivesEvents=directivesEvents;
        },
        addPane:function(pane) {
            if (pane.order === 0) {
                this.$scope.select(pane);
            }
            this.$scope.panes = this.$scope.panes.concat(pane).sort(function(a, b) {
                return a.order - b.order;
            });
        },
        select:function(pane) {
            angular.forEach(this.$scope.panes, function(pane) {
                pane.selected = false;
            });
            pane.selected = true;
            this.$scope.$emit(this.directivesEvents.TAB_CHANGE, pane.id);
        }
    });
    var TabController=function($scope){

    };
    TabController.$inject=["$scope"];
    return TabController;
});

      

        
        
        
      

    

and I include the module in another:

var directives=angular.module("directives",["tabsModule"]);

      

        
        
        
      

    

But when i use it i got this error:

Error: [$ injector: unpr] Unknown provider: $ scopeProvider <- $ scope <- tabsDirective

I have no idea where it came from, I made some modules / directives and I think I did it as always.

I've been stuck on it for hours, help !!!!

Edit: I didn't specify it, but I used requirejs and that caused this problem.