diff --git a/src/orm/base_model/index.ts b/src/orm/base_model/index.ts
index 7e415ad52..e5a68f83b 100644
--- a/src/orm/base_model/index.ts
+++ b/src/orm/base_model/index.ts
@@ -1776,6 +1776,10 @@ class BaseModelImpl implements LucidRow {
       Object.keys(values).forEach((key) => {
         const value = values[key]
 
+        if (value === undefined) {
+          return
+        }
+
         /**
          * Set as column
          */
diff --git a/test/orm/base_model.spec.ts b/test/orm/base_model.spec.ts
index d0aeaf2fd..a0b130bf7 100644
--- a/test/orm/base_model.spec.ts
+++ b/test/orm/base_model.spec.ts
@@ -3003,7 +3003,7 @@ test.group('BaseModel | fill/merge', (group) => {
 
     assert.deepEqual(user.$attributes, { age: 22 })
     user.merge({ username: 'virk', age: undefined })
-    assert.deepEqual(user.$attributes, { username: 'virk', age: undefined })
+    assert.deepEqual(user.$attributes, { username: 'virk', age: 22 })
   })
 
   test('invoke setter when using fill', async ({ fs, assert }) => {