diff --git a/monitor-admin/utils/indicator-utils.ts b/monitor-admin/utils/indicator-utils.ts
index 767d23fa..613bc1c2 100644
--- a/monitor-admin/utils/indicator-utils.ts
+++ b/monitor-admin/utils/indicator-utils.ts
@@ -734,6 +734,7 @@ export class IndicatorUtils {
     } else if ((obj[this.getDescriptionObjectName(obj)]).hasOwnProperty("queries")) {
       return "queries";
     }
+    return null;
   }
 
   private getDescriptionObjectName(obj) {
@@ -746,6 +747,7 @@ export class IndicatorUtils {
     } else if (obj.hasOwnProperty("series")) {
       return "series";
     }
+    return null;
   }
 
   private extractType(obj, indicatorPath: IndicatorPath): IndicatorPathType {