Index: ssts-web/src/main/webapp/disinfectsystem/basedatamanager/materialDefinition/materialDefinitionForm.js
===================================================================
diff -u -r24066 -r24067
--- ssts-web/src/main/webapp/disinfectsystem/basedatamanager/materialDefinition/materialDefinitionForm.js	(.../materialDefinitionForm.js)	(revision 24066)
+++ ssts-web/src/main/webapp/disinfectsystem/basedatamanager/materialDefinition/materialDefinitionForm.js	(.../materialDefinitionForm.js)	(revision 24067)
@@ -568,7 +568,7 @@
 							}),
 							editable:false,
 							forceSelection : true,
-							allowBlank: true,
+							allowBlank: false,
 							mode : 'local',
 							triggerAction : 'all',
 							anchor : '100%',