diff --git a/lib/mergely.js b/lib/mergely.js
index 64f58e8..b611cdb 100644
--- a/lib/mergely.js
+++ b/lib/mergely.js
@@ -599,8 +599,14 @@ jQuery.extend(Mgly.mergely.prototype, {
 		}
 		jQuery('<style type="text/css">' + cmstyle + '</style>').appendTo('head');
 		this.bind();
-		if (this.settings.lhs) this.settings.lhs( this.editor[this.id + '-lhs'].setValue );
-		if (this.settings.rhs) this.settings.rhs( this.editor[this.id + '-rhs'].setValue );
+		if (this.settings.lhs) {
+			var setv = this.editor[this.id + '-lhs'].getDoc().setValue;
+			this.settings.lhs(setv.bind(this.editor[this.id + '-lhs'].getDoc()));
+		}
+		if (this.settings.rhs) {
+			var setv = this.editor[this.id + '-rhs'].getDoc().setValue;
+			this.settings.rhs(setv.bind(this.editor[this.id + '-rhs'].getDoc()));
+		}
 		
 		// resize only after bind
 		this.settings.resize();