diff --git a/src/accounts/accountList.component.ts b/src/accounts/accountList.component.ts
index 7ffe65c..9fc510d 100644
--- a/src/accounts/accountList.component.ts
+++ b/src/accounts/accountList.component.ts
@@ -70,9 +70,7 @@ export class AccountListComponent implements OnInit {
    * Add an empty account.
    */
   add() {
-    const modal = this.ngbModal.open(AccountEditModalComponent, {
-      windowClass: 'in'
-    });
+    const modal = this.ngbModal.open(AccountEditModalComponent);
 
     modal.componentInstance.account = new Account();
 
diff --git a/src/operations/operationRow.component.ts b/src/operations/operationRow.component.ts
index 6991a4d..317e15b 100644
--- a/src/operations/operationRow.component.ts
+++ b/src/operations/operationRow.component.ts
@@ -139,9 +139,7 @@ export class OperationRowComponent {
 
   modify(operation) {
     // FIXME Alexis Lahouze 2017-06-15 i18n
-    const modal = this.ngbModal.open(OperationEditModalComponent, {
-      windowClass: 'in'
-    });
+    const modal = this.ngbModal.open(OperationEditModalComponent);
 
     modal.componentInstance.operation = operation;
 
diff --git a/src/scheduler/scheduleList.component.ts b/src/scheduler/scheduleList.component.ts
index 244c594..17c50fc 100644
--- a/src/scheduler/scheduleList.component.ts
+++ b/src/scheduler/scheduleList.component.ts
@@ -76,9 +76,7 @@ export class ScheduleListComponent implements OnInit {
         var schedule = new Schedule();
         schedule.account_id = this.accountId;
 
-        const modal = this.ngbModal.open(ScheduleEditModalComponent, {
-          windowClass: 'in'
-        });
+        const modal = this.ngbModal.open(ScheduleEditModalComponent);
 
         modal.componentInstance.schedule = schedule;
 
diff --git a/src/scheduler/scheduleRow.component.ts b/src/scheduler/scheduleRow.component.ts
index 62b3547..4d67edb 100644
--- a/src/scheduler/scheduleRow.component.ts
+++ b/src/scheduler/scheduleRow.component.ts
@@ -75,9 +75,7 @@ export class ScheduleRowComponent {
   }
 
   confirmDelete() {
-    const modal = this.ngbModal.open(ScheduleDeleteModalComponent, {
-      windowClass: 'in'
-    });
+    const modal = this.ngbModal.open(ScheduleDeleteModalComponent);
 
     modal.componentInstance.schedule = this.schedule;
 
@@ -103,9 +101,7 @@ export class ScheduleRowComponent {
   }
 
   modify() {
-    const modal = this.ngbModal.open(ScheduleEditModalComponent, {
-      windowClass: 'in'
-    });
+    const modal = this.ngbModal.open(ScheduleEditModalComponent);
 
     modal.componentInstance.schedule = this.schedule;