diff --git a/CHANGELOG.md b/CHANGELOG.md
index 51d86efa1..dbe4e13d9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Optimized the calculation of the portfolio summary
 
+### Fixed
+
+- Fixed the the activities import (query parameter handling)
+
 ## 2.60.0 - 2024-03-02
 
 ### Added
diff --git a/apps/api/src/app/import/import.controller.ts b/apps/api/src/app/import/import.controller.ts
index b7aff8634..29a06fc9f 100644
--- a/apps/api/src/app/import/import.controller.ts
+++ b/apps/api/src/app/import/import.controller.ts
@@ -43,8 +43,10 @@ export class ImportController {
   @UseInterceptors(TransformDataSourceInResponseInterceptor)
   public async import(
     @Body() importData: ImportDataDto,
-    @Query('dryRun') isDryRun = false
+    @Query('dryRun') isDryRunParam = 'false'
   ): Promise<ImportResponse> {
+    const isDryRun = isDryRunParam === 'true';
+
     if (
       !hasPermission(this.request.user.permissions, permissions.createAccount)
     ) {
diff --git a/apps/api/src/app/portfolio/portfolio.controller.ts b/apps/api/src/app/portfolio/portfolio.controller.ts
index 8f4acc060..e51321561 100644
--- a/apps/api/src/app/portfolio/portfolio.controller.ts
+++ b/apps/api/src/app/portfolio/portfolio.controller.ts
@@ -342,9 +342,12 @@ export class PortfolioController {
     @Query('assetClasses') filterByAssetClasses?: string,
     @Query('range') dateRange: DateRange = 'max',
     @Query('tags') filterByTags?: string,
-    @Query('withExcludedAccounts') withExcludedAccounts = false,
-    @Query('withItems') withItems = false
+    @Query('withExcludedAccounts') withExcludedAccountsParam = 'false',
+    @Query('withItems') withItemsParam = 'false'
   ): Promise<PortfolioPerformanceResponse> {
+    const withExcludedAccounts = withExcludedAccountsParam === 'true';
+    const withItems = withItemsParam === 'true';
+
     const hasReadRestrictedAccessPermission =
       this.userService.hasReadRestrictedAccessPermission({
         impersonationId,
diff --git a/apps/api/src/app/symbol/symbol.controller.ts b/apps/api/src/app/symbol/symbol.controller.ts
index e41267b79..17e0056d6 100644
--- a/apps/api/src/app/symbol/symbol.controller.ts
+++ b/apps/api/src/app/symbol/symbol.controller.ts
@@ -39,9 +39,11 @@ export class SymbolController {
   @UseGuards(AuthGuard('jwt'), HasPermissionGuard)
   @UseInterceptors(TransformDataSourceInResponseInterceptor)
   public async lookupSymbol(
-    @Query('includeIndices') includeIndices = false,
+    @Query('includeIndices') includeIndicesParam = 'false',
     @Query('query') query = ''
   ): Promise<{ items: LookupItem[] }> {
+    const includeIndices = includeIndicesParam === 'true';
+
     try {
       return this.symbolService.lookup({
         includeIndices,