diff --git a/client/src/app/modules/keys/keys.component.ts b/client/src/app/modules/keys/keys.component.ts
index 60c7a1b..bb6421e 100644
--- a/client/src/app/modules/keys/keys.component.ts
+++ b/client/src/app/modules/keys/keys.component.ts
@@ -51,11 +51,17 @@ export class KeysComponent {
         tooltipValueGetter: (data: any) => data.value?.map((m: ICylinder) => m.name).join(', '),
         cellEditor: 'agSelectCellEditor',
         cellEditorPopup: false,
+        filterValueGetter: (data: any) => {return data.value?.map((m: ICylinder) => m.name).join(', ')},
       },
       { colId: 'system', field: 'cylinder' , headerName: 'Schließanlage', flex: 1, editable: false, filter: true, cellRenderer: (data: any) => {
         const s = new Set<string>(data.value?.map((m: ICylinder) => m.system?.name));
         return [...s].join(', ')
-      } },
+        },
+        filterValueGetter: (data: any) => {
+          const s = new Set<string>(data.value?.map((m: ICylinder) => m.system?.name));
+        return [...s].join(', ')
+        }
+      },
       { colId: 'customer', field: 'customer' , headerName: 'Kunde', flex: 1, editable: false, filter: true, cellRenderer: (data: any) => {return data.value?.name} },
       {
         field: 'createdAt'