diff --git a/dmp-frontend/src/app/ui/explore-dataset/filters/explore-dataset-filters.component.ts b/dmp-frontend/src/app/ui/explore-dataset/filters/explore-dataset-filters.component.ts
index 1f3bc2f4f..d9a1e5f5b 100644
--- a/dmp-frontend/src/app/ui/explore-dataset/filters/explore-dataset-filters.component.ts
+++ b/dmp-frontend/src/app/ui/explore-dataset/filters/explore-dataset-filters.component.ts
@@ -254,9 +254,8 @@ export class ExploreDatasetFiltersComponent extends BaseComponent implements OnI
 		this.facetCriteriaChange.emit(this.facetCriteria);
 	}
 
-	onGrantOptionSelected(items: GrantListingModel[]) {
-		this.facetCriteria.grants.splice(0);
-		this.facetCriteria.grants.push(...items.map(x => x.id));
+	onGrantOptionSelected(item: GrantListingModel) {
+		this.facetCriteria.grants.push(item.id);
 		this.facetCriteriaChange.emit(this.facetCriteria);
 	}
 
@@ -268,9 +267,8 @@ export class ExploreDatasetFiltersComponent extends BaseComponent implements OnI
 		}
 	}
 
-	onDmpOptionSelected(items: DmpListingModel[]) {
-		this.facetCriteria.dmpIds.splice(0);
-		this.facetCriteria.dmpIds.push(...items.map(x => x.id));
+	onDmpOptionSelected(item: DmpListingModel) {
+		this.facetCriteria.dmpIds.push(item.id);
 		this.facetCriteriaChange.emit(this.facetCriteria);
 	}
 
@@ -282,9 +280,8 @@ export class ExploreDatasetFiltersComponent extends BaseComponent implements OnI
 		}
 	}
 
-	onProfileOptionSelected(items: DatasetProfileModel[]) {
-		this.facetCriteria.datasetProfile.splice(0);
-		this.facetCriteria.datasetProfile.push(...items.map(x => x.id));
+	onProfileOptionSelected(item: DatasetProfileModel) {
+		this.facetCriteria.datasetProfile.push(item.id);
 		this.facetCriteriaChange.emit(this.facetCriteria);
 	}
 
@@ -296,9 +293,8 @@ export class ExploreDatasetFiltersComponent extends BaseComponent implements OnI
 		}
 	}
 
-	onOrganizationOptionSelected(items: OrganizationModel[]) {
-		this.facetCriteria.dmpOrganisations.splice(0);
-		this.facetCriteria.dmpOrganisations.push(...items.map(x => x.id));
+	onOrganizationOptionSelected(item: OrganizationModel) {
+		this.facetCriteria.dmpOrganisations.push(item.id);
 		this.facetCriteriaChange.emit(this.facetCriteria);
 	}
 
diff --git a/dmp-frontend/src/app/ui/explore-dmp/dmp-explore-filters/explore-dmp-filters.component.ts b/dmp-frontend/src/app/ui/explore-dmp/dmp-explore-filters/explore-dmp-filters.component.ts
index d65d47541..99917f0e4 100644
--- a/dmp-frontend/src/app/ui/explore-dmp/dmp-explore-filters/explore-dmp-filters.component.ts
+++ b/dmp-frontend/src/app/ui/explore-dmp/dmp-explore-filters/explore-dmp-filters.component.ts
@@ -197,9 +197,9 @@ export class ExploreDmpFiltersComponent extends BaseCriteriaComponent implements
 		this.facetCriteriaChange.emit(this.facetCriteria);
 	}
 
-	onProfileOptionSelected(items: DatasetProfileModel[]) {
-		this.facetCriteria.datasetProfile.splice(0);
-		this.facetCriteria.datasetProfile.push(...items.map(x => x.id));
+	onProfileOptionSelected(items: DatasetProfileModel) {
+		//this.facetCriteria.datasetProfile.splice(0);
+		this.facetCriteria.datasetProfile.push(items.id);
 		this.facetCriteriaChange.emit(this.facetCriteria);
 	}
 
@@ -228,9 +228,8 @@ export class ExploreDmpFiltersComponent extends BaseCriteriaComponent implements
 		this.facetCriteriaChange.emit(this.facetCriteria);
 	}
 
-	onOrganizationOptionSelected(items: OrganizationModel[]) {
-		this.facetCriteria.dmpOrganisations.splice(0);
-		this.facetCriteria.dmpOrganisations.push(...items.map(x => x.id));
+	onOrganizationOptionSelected(item: OrganizationModel) {
+		this.facetCriteria.dmpOrganisations.push(item.id);
 		this.facetCriteriaChange.emit(this.facetCriteria);
 	}
 
@@ -242,9 +241,8 @@ export class ExploreDmpFiltersComponent extends BaseCriteriaComponent implements
 		}
 	}
 
-	onGrantOptionSelected(items: GrantListingModel[]) {
-		this.facetCriteria.grants.splice(0);
-		this.facetCriteria.grants.push(...items.map(x => x.id));
+	onGrantOptionSelected(item: GrantListingModel) {
+		this.facetCriteria.grants.push(item.id);
 		this.facetCriteriaChange.emit(this.facetCriteria);
 	}