diff --git a/dmp-frontend/src/app/core/services/dataset-wizard/dataset-wizard.service.ts b/dmp-frontend/src/app/core/services/dataset-wizard/dataset-wizard.service.ts
index 8d20be7d8..1703704b2 100644
--- a/dmp-frontend/src/app/core/services/dataset-wizard/dataset-wizard.service.ts
+++ b/dmp-frontend/src/app/core/services/dataset-wizard/dataset-wizard.service.ts
@@ -74,6 +74,8 @@ export class DatasetWizardService {
 			for (let i = 0; i < fileList.length; i++) {
 				formData.append('file', fileList[i], datasetTitle);
 			}
+		} else if (Array.isArray(fileList)) {
+			formData.append('files', fileList);
 		} else {
 			formData.append('file', fileList);
 		}
diff --git a/dmp-frontend/src/app/core/services/dmp/dmp.service.ts b/dmp-frontend/src/app/core/services/dmp/dmp.service.ts
index a3eb91475..8c8fdc0c3 100644
--- a/dmp-frontend/src/app/core/services/dmp/dmp.service.ts
+++ b/dmp-frontend/src/app/core/services/dmp/dmp.service.ts
@@ -143,6 +143,8 @@ export class DmpService {
 			for (let i = 0; i < fileList.length; i++) {
 				formData.append('file', fileList[i], dmpTitle);
 			}
+		} else if (Array.isArray(fileList)) {
+			formData.append('files', fileList);
 		} else {
 			formData.append('file', fileList);
 		}