diff --git a/node_modules/ace/lib/ace/line_widgets.js b/node_modules/ace/lib/ace/line_widgets.js
index c1eaeb85..c8154a13 100644
--- a/node_modules/ace/lib/ace/line_widgets.js
+++ b/node_modules/ace/lib/ace/line_widgets.js
@@ -196,6 +196,8 @@ function LineWidgets(session) {
             
         this.session.lineWidgets[w.row] = w;
         
+        w.session = this.session;
+        
         var renderer = this.editor.renderer;
         if (w.html && !w.el) {
             w.el = dom.createElement("div");
@@ -239,6 +241,7 @@ function LineWidgets(session) {
     
     this.removeLineWidget = function(w) {
         w._inDocument = false;
+        w.session = null;
         if (w.el && w.el.parentNode)
             w.el.parentNode.removeChild(w.el);
         if (w.editor && w.editor.destroy) try {
@@ -269,7 +272,7 @@ function LineWidgets(session) {
         var w = lineWidgets && lineWidgets[row];
         var list = [];
         while (w) {
-            list.push(w)
+            list.push(w);
             w = w.$oldWidget;
         }
         return list;
@@ -289,6 +292,7 @@ function LineWidgets(session) {
         for (var i = 0; i < changedWidgets.length; i++) {
             var w = changedWidgets[i];
             if (!w || !w.el) continue;
+            if (w.session != this.session) continue;
             if (!w._inDocument) {
                 w._inDocument = true;
                 renderer.container.appendChild(w.el);
diff --git a/package.json b/package.json
index fd8d8016..fc31e3e5 100644
--- a/package.json
+++ b/package.json
@@ -71,7 +71,7 @@
         "c9.ide.find": "#35379124ca",
         "c9.ide.find.infiles": "#c132ad243c",
         "c9.ide.find.replace": "#44772dd796",
-        "c9.ide.run.debug": "#43755761eb",
+        "c9.ide.run.debug": "#e38e16e120",
         "c9.automate": "#47e2c429c9",
         "c9.ide.ace.emmet": "#6dc4585e02",
         "c9.ide.ace.gotoline": "#a8ff07c8f4",