=== modified file 'dhis-2/dhis-web/dhis-web-apps/src/main/webapp/dhis-web-event-reports/scripts/app.js'
--- dhis-2/dhis-web/dhis-web-apps/src/main/webapp/dhis-web-event-reports/scripts/app.js	2015-02-25 14:51:26 +0000
+++ dhis-2/dhis-web/dhis-web-apps/src/main/webapp/dhis-web-event-reports/scripts/app.js	2015-02-25 16:01:34 +0000
@@ -138,7 +138,9 @@
                     record.filter = this.rangeValueCmp.getValue().join(';');
                 }
                 else {
-                    record.filter = this.operatorCmp.getValue() + ':' + this.valueCmp.getValue();
+                    if (this.valueCmp.getValue()) {
+                        record.filter = this.operatorCmp.getValue() + ':' + this.valueCmp.getValue();
+                    }
                 }
 
 				return record;