diff --git a/src/datasource.test.ts b/src/datasource.test.ts
index d650c46..37144e9 100644
--- a/src/datasource.test.ts
+++ b/src/datasource.test.ts
@@ -210,7 +210,7 @@ describe('PrometheusDatasource', () => {
       });
     });
 
-    it('should add filters to expression', () => {
+    it('AdhocFilters should not add filters', () => {
       getAdhocFiltersMock.mockReturnValue([
         {
           key: 'k1',
@@ -219,7 +219,8 @@ describe('PrometheusDatasource', () => {
         }
       ]);
       replaceMock.mockImplementation((str, params) => {
-        return str.replace('$topk', '5');
+        const topk = params['topk'] as ScopedVar;
+        return str.replace('$topk', topk.value);
       });
       const caseTarget: PromQuery = { expr: 'topk_max($topk, vmalert_iteration_duration_seconds_sum)', refId: 'A' };
       const result = ds.createQuery(caseTarget, { interval: '15s', scopedVars: { 'topk': { text: 'topk', value: '5' } } as ScopedVars} as DataQueryRequest<PromQuery>, 0, 0);
@@ -506,7 +507,7 @@ describe('PrometheusDatasource', () => {
       expect(result).toMatchObject({ expr: 'test{job="bar", k1="v1", k2!="v2"}' });
     });
 
-    it('should add filters to expression', () => {
+    it('AdhocFilters should not add filters', () => {
       getAdhocFiltersMock.mockReturnValue([
         {
           key: 'k1',
@@ -515,14 +516,14 @@ describe('PrometheusDatasource', () => {
         }
       ]);
       replaceMock.mockImplementation((str, params) => {
-        return str?.replace('$topk', '5');
+        const topk = params['topk'] as ScopedVar;
+        return str?.replace('$topk', topk.value);
       });
       const query: PromQuery = { 
         expr: 'topk_max($topk, vmalert_iteration_duration_seconds_sum)', 
         refId: 'A' 
       };
       const result = ds.applyTemplateVariables(query, { 'topk': { text: 'topk', value: '5' } } as ScopedVars);
-      console.log(result);
       expect(result).toMatchObject({ expr: 'topk_max(5, vmalert_iteration_duration_seconds_sum{k1="v1"})'});
     });
   });