diff --git a/packages/canyon-backend/src/utils/coverage.ts b/packages/canyon-backend/src/utils/coverage.ts
index d1548db1..8c0fcee2 100755
--- a/packages/canyon-backend/src/utils/coverage.ts
+++ b/packages/canyon-backend/src/utils/coverage.ts
@@ -162,6 +162,8 @@ const removeStartEndNull = (coverage) => {
         ...item,
         branchMap: newBranchMap,
       };
+    } else {
+      obj[key] = item;
     }
   });
   // fs.writeFileSync('./coverage.json', JSON.stringify(obj));