diff --git a/api/js/etemplate/et2_widget_date.js b/api/js/etemplate/et2_widget_date.js
index 0a0ed0b7b6..56c92262a8 100644
--- a/api/js/etemplate/et2_widget_date.js
+++ b/api/js/etemplate/et2_widget_date.js
@@ -794,7 +794,7 @@ var et2_date_duration = (function(){ "use strict"; return et2_date.extend(
 			}
 			else
 			{
-				this.format.text(this.time_formats[display.unit]);
+				this.format.text(display.unit ? this.time_formats[display.unit] : '');
 			}
 		}
 	},