diff --git a/packages/twenty-front/src/modules/activities/tasks/hooks/useTasks.ts b/packages/twenty-front/src/modules/activities/tasks/hooks/useTasks.ts
index 1d6293ddfc..e194a4d8d6 100644
--- a/packages/twenty-front/src/modules/activities/tasks/hooks/useTasks.ts
+++ b/packages/twenty-front/src/modules/activities/tasks/hooks/useTasks.ts
@@ -46,7 +46,7 @@ export const useTasks = (props?: UseTasksProps) => {
       type: { eq: 'Task' },
       ...(isNonEmptyString(selectedFilter?.value) && {
         assigneeId: {
-          eq: selectedFilter?.value,
+          in: JSON.parse(selectedFilter?.value),
         },
       }),
     },
@@ -70,7 +70,7 @@ export const useTasks = (props?: UseTasksProps) => {
       type: { eq: 'Task' },
       ...(isNonEmptyString(selectedFilter?.value) && {
         assigneeId: {
-          eq: selectedFilter?.value,
+          in: JSON.parse(selectedFilter?.value),
         },
       }),
     },
diff --git a/packages/twenty-front/src/pages/tasks/TasksEffect.tsx b/packages/twenty-front/src/pages/tasks/TasksEffect.tsx
index 24554d9358..859b167f0a 100644
--- a/packages/twenty-front/src/pages/tasks/TasksEffect.tsx
+++ b/packages/twenty-front/src/pages/tasks/TasksEffect.tsx
@@ -26,7 +26,7 @@ export const TasksEffect = ({ filterDropdownId }: TasksEffectProps) => {
     if (currentWorkspaceMember) {
       setSelectedFilter({
         fieldMetadataId: 'assigneeId',
-        value: currentWorkspaceMember.id,
+        value: JSON.stringify(currentWorkspaceMember.id),
         operand: ViewFilterOperand.Is,
         displayValue:
           currentWorkspaceMember.name?.firstName +