diff --git a/src/services/performanceDbApi.js b/src/services/performanceDbApi.js
index c1967c1b..ca42240a 100644
--- a/src/services/performanceDbApi.js
+++ b/src/services/performanceDbApi.js
@@ -106,7 +106,7 @@ export function lpaOverviewQuery (lpa, params) {
 
   const entityCountsSelects = []
   for (const { resource, dataset, entityCount } of params.entityCounts) {
-    if (entityCount && entityCount >= 0) {
+    if (Number.isInteger(entityCount) && entityCount >= 0) {
       entityCountsSelects.push(entityCountSelectFragment(dataset, resource, entityCount))
     }
   }
diff --git a/test/unit/performanceDbApi.test.js b/test/unit/performanceDbApi.test.js
index 5d3f3047..c1fb07fe 100644
--- a/test/unit/performanceDbApi.test.js
+++ b/test/unit/performanceDbApi.test.js
@@ -48,11 +48,15 @@ describe('performanceDbApi', () => {
     it('uses params in the query', () => {
       const query = lpaOverviewQuery('local-authority:FOO', {
         datasetsFilter: ['dataset-one', 'dataset-two'],
-        entityCounts: [{ dataset: 'dataset-three', resource: 'r1', entityCount: 10 }]
+        entityCounts: [
+          { dataset: 'dataset-three', resource: 'r1', entityCount: 10 },
+          { dataset: 'dataset-four', resource: 'r2', entityCount: 0 }]
       })
       expect(query).toContain('local-authority:FOO')
       expect(query).toContain('dataset-one')
       expect(query).toContain('dataset-two')
+      expect(query).toContain('dataset-three')
+      expect(query).toContain('dataset-four')
     })
   })