diff --git a/o2web/source/x_component_Common/Main.js b/o2web/source/x_component_Common/Main.js
index 652cc4f4b4da7dd4da2eecc98af2a5e47a67bd68..e89a527f0b54c4ebc3be8011d4c521e063c01e55 100644
--- a/o2web/source/x_component_Common/Main.js
+++ b/o2web/source/x_component_Common/Main.js
@@ -250,7 +250,7 @@ MWF.xApplication.Common.Main = new Class({
 			this.window.titleText.set("text", this.options.title);
 		} catch (e) { }
 
-		if (content && O2.typeOf(content)==="element") this.window.content = content;
+		if (content && o2.typeOf(content)==="element") this.window.content = content;
 		if (!this.window.content) this.window.content = $("appContent") || $("layout");
 		if (!this.window.content) {
 			this.window.content = new Element("div", {"styles": {"width": 0, "height": 0}}).inject(document.body);