diff --git a/apps/api/src/app/export/export.controller.ts b/apps/api/src/app/export/export.controller.ts
index 551b3e489..d807132c9 100644
--- a/apps/api/src/app/export/export.controller.ts
+++ b/apps/api/src/app/export/export.controller.ts
@@ -21,10 +21,11 @@ export class ExportController {
   @UseGuards(AuthGuard('jwt'), HasPermissionGuard)
   public async export(
     @Query('accounts') filterByAccounts?: string,
-    @Query('activityIds') activityIds?: string[],
+    @Query('activityIds') filterByActivityIds?: string,
     @Query('assetClasses') filterByAssetClasses?: string,
     @Query('tags') filterByTags?: string
   ): Promise<Export> {
+    const activityIds = filterByActivityIds?.split(',') ?? [];
     const filters = this.apiService.buildFiltersFromQueryParams({
       filterByAccounts,
       filterByAssetClasses,
diff --git a/apps/api/src/app/export/export.service.ts b/apps/api/src/app/export/export.service.ts
index 0191b7852..f0449dc14 100644
--- a/apps/api/src/app/export/export.service.ts
+++ b/apps/api/src/app/export/export.service.ts
@@ -38,7 +38,7 @@ export class ExportService {
       withExcludedAccounts: true
     });
 
-    if (activityIds) {
+    if (activityIds?.length > 0) {
       activities = activities.filter(({ id }) => {
         return activityIds.includes(id);
       });
@@ -57,7 +57,7 @@ export class ExportService {
       })
     )
       .filter(({ id }) => {
-        return filters.length > 0
+        return activities.length > 0
           ? activities.some(({ accountId }) => {
               return accountId === id;
             })