diff --git a/openbis_standard_technologies/dist/core-plugins/eln-lims/1/as/webapps/eln-lims/html/js/views/SampleForm/SampleFormController.js b/openbis_standard_technologies/dist/core-plugins/eln-lims/1/as/webapps/eln-lims/html/js/views/SampleForm/SampleFormController.js
index 11bda96fdbe3bd2c7f0d51ff734dbd980bfe8334..d492acc296d34c9106903174ab17706054d1e54a 100644
--- a/openbis_standard_technologies/dist/core-plugins/eln-lims/1/as/webapps/eln-lims/html/js/views/SampleForm/SampleFormController.js
+++ b/openbis_standard_technologies/dist/core-plugins/eln-lims/1/as/webapps/eln-lims/html/js/views/SampleForm/SampleFormController.js
@@ -122,6 +122,9 @@ function SampleFormController(mainController, mode, sample) {
 		
 		var sampleParentsFinal = _this._sampleFormModel.sampleLinksParents.getSamplesIdentifiers();
 		
+		var sampleParentsRemovedFinal = _this._sampleFormModel.sampleLinksParents.getSamplesRemovedIdentifiers();
+		var sampleParentsAddedFinal = _this._sampleFormModel.sampleLinksParents.getSamplesAddedIdentifiers();
+		
 		var sampleChildrenFinal = _this._sampleFormModel.sampleLinksChildren.getSamplesIdentifiers();
 		
 		var sampleChildrenRemovedFinal = _this._sampleFormModel.sampleLinksChildren.getSamplesRemovedIdentifiers();
@@ -244,7 +247,7 @@ function SampleFormController(mainController, mode, sample) {
 					//Other Properties
 					"sampleProperties" : properties,
 					//Parent links
-					"sampleParents": sampleParentsFinal,
+					"sampleParents": (sampleParentsRemovedFinal.length === 0 && sampleParentsAddedFinal.length === 0)?null:sampleParentsFinal,
 					"sampleParentsNew": newSampleParents,
 					//Children links
 					"sampleChildrenNew": samplesToCreate,