diff --git a/src/lib/__tests__/utils.ts b/src/lib/__tests__/utils.ts
index 9ddfe81..9082f03 100644
--- a/src/lib/__tests__/utils.ts
+++ b/src/lib/__tests__/utils.ts
@@ -37,6 +37,14 @@ describe('utils', () => {
       const result = createOrApplyPath(null, ['some', 'path'], 'new value')
       expect(result).toEqual(null)
     })
+    it('should handle null of key inside object', () => {
+      const result = createOrApplyPath(
+        { some: null },
+        ['some', 'path'],
+        'new value'
+      )
+      expect(result).toEqual({ some: null })
+    })
     it('should map an object', () => {
       const object = {
         some: {
diff --git a/src/lib/utils.ts b/src/lib/utils.ts
index 0349301..8632a91 100644
--- a/src/lib/utils.ts
+++ b/src/lib/utils.ts
@@ -20,12 +20,14 @@ export const createOrApplyPath = (
   while (thisPath.length > 1) {
     const [head, ...tail] = thisPath
     thisPath = tail
-    if (current[head] === undefined) {
+    if (current?.[head] === undefined) {
       current[head] = {}
     }
     current = current[head]
   }
-  current[thisPath[0]] = value
+  if (current) {
+    current[thisPath[0]] = value
+  }
   return obj
 }