diff --git a/lib/click_house/definition/column_set.rb b/lib/click_house/definition/column_set.rb
index 66c2d17..fe56f25 100644
--- a/lib/click_house/definition/column_set.rb
+++ b/lib/click_house/definition/column_set.rb
@@ -22,10 +22,10 @@ def method_name_for_type(type)
         class_eval <<-METHODS, __FILE__, __LINE__ + 1
           def #{method_name}(*definition)
             name = definition[0]
-            extentions = []
+            extensions = []
             options = {}
-            extensions = Array(definition[1..-1]).each do |el|
-              el.is_a?(Hash) ? options.merge!(el) : extentions.push(el)
+            Array(definition[1..-1]).each do |el|
+              el.is_a?(Hash) ? options.merge!(el) : extensions.push(el)
             end
 
             columns << Column.new(type: "#{type}", name: name, extensions: extensions, **options)
diff --git a/spec/click_house/definition/column_set_spec.rb b/spec/click_house/definition/column_set_spec.rb
index c5fc7c9..4362440 100644
--- a/spec/click_house/definition/column_set_spec.rb
+++ b/spec/click_house/definition/column_set_spec.rb
@@ -10,6 +10,7 @@ def squish(string)
         t.UInt16  :year_birth, low_cardinality: true
         t.UInt16  :year_death, low_cardinality: true, nullable: true, default: 0
         t.Float32 :city_id, default: 0, nullable: true
+        t.DateTime :updated_at, 'UTC', default: 'NOW()'
         t.Nested :json do |n|
           n.UInt8 :cid, nullable: true
           n.Date  :created_at, default: 'NOW()'
@@ -23,24 +24,26 @@ def squish(string)
 
     let(:expectation) do
       <<~SQL
-        ( 
-          money Decimal(5, 5), 
-          year_birth LowCardinality(UInt16), 
+        (
+          money Decimal(5, 5),
+          year_birth LowCardinality(UInt16),
           year_death LowCardinality(Nullable(UInt16)) DEFAULT 0,
-          city_id Nullable(Float32) DEFAULT 0, 
-          json Nested ( 
-                        cid Nullable(UInt8) , 
-                        created_at Date DEFAULT NOW(), 
+          city_id Nullable(Float32) DEFAULT 0,
+          updated_at DateTime('UTC') DEFAULT NOW(),
+          json Nested (
+                        cid Nullable(UInt8) ,
+                        created_at Date DEFAULT NOW(),
                         updated_at DateTime('UTC'),
-                        deleted_at DateTime64(6, 'UTC')  
-                      ), 
-          words Enum('hello' = 1, 'world' = 2), 
-          tags Array(String) 
+                        deleted_at DateTime64(6, 'UTC')
+                      ),
+          words Enum('hello' = 1, 'world' = 2),
+          tags Array(String)
         )
       SQL
     end
 
     it 'works' do
+      expect(subject.columns).to include(have_attributes default: "NOW()", extensions: ["UTC"], name: :updated_at, type: "DateTime('%s')") # Correctly handles columns with a mix of hash and non-hash arguments
       expect(squish(subject.to_s)).to eq(squish(expectation))
     end
   end