diff --git a/src/components/modal/nz-confirm.component.ts b/src/components/modal/nz-confirm.component.ts
index ba9fc4f75f2..01607aad764 100644
--- a/src/components/modal/nz-confirm.component.ts
+++ b/src/components/modal/nz-confirm.component.ts
@@ -262,6 +262,9 @@ export class NzConfirmComponent implements OnInit, OnDestroy {
   }
 
   ngOnDestroy() {
+    if (this._visible) {
+      nzGlobalMonitor.setDocumentOverflowHidden(false);
+    }
     this.subject.next('onDestroy');
     this.subject.unsubscribe();
     this.subject = null;
diff --git a/src/components/modal/nz-modal.component.ts b/src/components/modal/nz-modal.component.ts
index 3bd6732d94c..4ff3a6b6635 100644
--- a/src/components/modal/nz-modal.component.ts
+++ b/src/components/modal/nz-modal.component.ts
@@ -336,6 +336,9 @@ export class NzModalComponent implements OnInit, OnDestroy, AfterViewInit {
   }
 
   ngOnDestroy() {
+    if (this._visible) {
+      nzGlobalMonitor.setDocumentOverflowHidden(false);
+    }
     this.subject.next('onDestroy');
     this.subject.unsubscribe();
     this.subject = null;