diff --git a/.eslintrc.js b/.eslintrc.js
index 6bf880fc3..0f33f43f4 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -72,7 +72,8 @@ module.exports = {
       },
     ],
     'object-shorthand': 'error',
-    'arrow-body-style': ["error", "as-needed"]
+    'arrow-body-style': ["error", "as-needed"],
+    'guard-for-in': 'error'
   },
   overrides: [
     // Configuration for  translations files (i18next)
diff --git a/src/api/common/utils.tsx b/src/api/common/utils.tsx
index a02f0cfc2..efc5bd3fd 100644
--- a/src/api/common/utils.tsx
+++ b/src/api/common/utils.tsx
@@ -51,11 +51,13 @@ type GenericObject = { [key: string]: unknown };
 export const toCamelCase = (obj: GenericObject): GenericObject => {
   const newObj: GenericObject = {};
   for (const key in obj) {
-    if (key.includes('_')) {
-      const newKey = key.replace(/_([a-z])/g, (g) => g[1].toUpperCase());
-      newObj[newKey] = obj[key];
-    } else {
-      newObj[key] = obj[key];
+    if (obj.hasOwnProperty(key)) {
+      if (key.includes('_')) {
+        const newKey = key.replace(/_([a-z])/g, (g) => g[1].toUpperCase());
+        newObj[newKey] = obj[key];
+      } else {
+        newObj[key] = obj[key];
+      }
     }
   }
   return newObj;
@@ -64,16 +66,18 @@ export const toCamelCase = (obj: GenericObject): GenericObject => {
 export const toSnakeCase = (obj: GenericObject): GenericObject => {
   const newObj: GenericObject = {};
   for (const key in obj) {
-    let newKey = key.match(/([A-Z])/g)
-      ? key
-          .match(/([A-Z])/g)!
-          .reduce(
-            (str, c) => str.replace(new RegExp(c), '_' + c.toLowerCase()),
-            key
-          )
-      : key;
-    newKey = newKey.substring(key.slice(0, 1).match(/([A-Z])/g) ? 1 : 0);
-    newObj[newKey] = obj[key];
+    if (obj.hasOwnProperty(key)) {
+      let newKey = key.match(/([A-Z])/g)
+        ? key
+            .match(/([A-Z])/g)!
+            .reduce(
+              (str, c) => str.replace(new RegExp(c), '_' + c.toLowerCase()),
+              key
+            )
+        : key;
+      newKey = newKey.substring(key.slice(0, 1).match(/([A-Z])/g) ? 1 : 0);
+      newObj[newKey] = obj[key];
+    }
   }
   return newObj;
 };