diff --git a/dmp-frontend/src/app/core/services/reference/reference.service.ts b/dmp-frontend/src/app/core/services/reference/reference.service.ts
index abe336f89..d7ba85b6e 100644
--- a/dmp-frontend/src/app/core/services/reference/reference.service.ts
+++ b/dmp-frontend/src/app/core/services/reference/reference.service.ts
@@ -140,8 +140,8 @@ export class ReferenceService {
 
 	public getMultipleAutoCompleteSearchConfiguration(typeId: Guid, dependencyReferences: Reference[]): MultipleAutoCompleteConfiguration {
 		return {
-			initialItems: (excludedItems: any[], data?: any) => this.searchWithDefinition(this.buildAutocompleteSearchLookup(typeId, dependencyReferences, null)).pipe(map(x => x.filter(r => r.id))).pipe(map(x => x)),
-			filterFn: (searchQuery: string, excludedItems: any[]) => this.searchWithDefinition(this.buildAutocompleteSearchLookup(typeId, dependencyReferences, searchQuery)).pipe(map(x => x.filter(r => r.id))).pipe(map(x => x)),
+			initialItems: (excludedItems: any[], data?: any) => this.searchWithDefinition(this.buildAutocompleteSearchLookup(typeId, dependencyReferences, null)).pipe(map(x => x)),
+			filterFn: (searchQuery: string, excludedItems: any[]) => this.searchWithDefinition(this.buildAutocompleteSearchLookup(typeId, dependencyReferences, searchQuery)).pipe(map(x => x)),
 			displayFn: (item: Reference) => item.label,
 			titleFn: (item: Reference) => item.label,
 			subtitleFn: (item: Reference) => item?.sourceType === ReferenceSourceType.External ? this.language.instant('REFERENCE-FIELD-COMPONENT.EXTERNAL-SOURCE') + ': ' + item.source : this.language.instant('REFERENCE-FIELD-COMPONENT.INTERNAL-SOURCE'),