diff --git a/CHANGELOG.md b/CHANGELOG.md
index b6d378a5af3..652f1ebc227 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@
 * [#8810](https://github.com/rubocop-hq/rubocop/pull/8810): Fix multiple offense detection for `Style/RaiseArgs`. ([@pbernays][])
 * [#8809](https://github.com/rubocop-hq/rubocop/pull/8809): Fix multiple offense detection for `Style/For`. ([@pbernays][])
 * [#8801](https://github.com/rubocop-hq/rubocop/issues/8801): Fix `Layout/SpaceAroundEqualsInParameterDefault` only registered once in a line. ([@rdunlop][])
+* [#8718](https://github.com/rubocop-hq/rubocop/issues/8718): Fix undefined methods of pseudo location. ([@ybiquitous][])
 
 ### Changes
 
diff --git a/lib/rubocop/cop/offense.rb b/lib/rubocop/cop/offense.rb
index 0da21b0fe6d..bd8938b54d1 100644
--- a/lib/rubocop/cop/offense.rb
+++ b/lib/rubocop/cop/offense.rb
@@ -63,7 +63,20 @@ class Offense
       attr_reader :corrector
 
       PseudoSourceRange = Struct.new(:line, :column, :source_line, :begin_pos,
-                                     :end_pos)
+                                     :end_pos) do
+        alias_method :first_line, :line
+        alias_method :last_line, :line
+        alias_method :last_column, :column
+
+        def column_range
+          column...last_column
+        end
+
+        def size
+          end_pos - begin_pos
+        end
+        alias_method :length, :size
+      end
       private_constant :PseudoSourceRange
 
       NO_LOCATION = PseudoSourceRange.new(1, 0, '', 0, 1).freeze
diff --git a/spec/rubocop/cop/offense_spec.rb b/spec/rubocop/cop/offense_spec.rb
index d1fb624b0cd..293a4c491a8 100644
--- a/spec/rubocop/cop/offense_spec.rb
+++ b/spec/rubocop/cop/offense_spec.rb
@@ -180,4 +180,49 @@ def Foo
       expect(offense.highlighted_area.source).to eq('Foo')
     end
   end
+
+  context 'when the location is pseudo' do
+    let(:location) { described_class::NO_LOCATION }
+
+    it 'returns a location with valid size and length' do
+      expect(offense.location.size).to eq 1
+      expect(offense.location.length).to eq 1
+    end
+
+    it 'returns a line' do
+      expect(offense.line).to eq 1
+    end
+
+    it 'returns a column' do
+      expect(offense.column).to eq 0
+    end
+
+    it 'returns a source line' do
+      expect(offense.source_line).to eq ''
+    end
+
+    it 'returns a column length' do
+      expect(offense.column_length).to eq 0
+    end
+
+    it 'returns the first line' do
+      expect(offense.first_line).to eq 1
+    end
+
+    it 'returns the last line' do
+      expect(offense.last_line).to eq 1
+    end
+
+    it 'returns the last column' do
+      expect(offense.last_column).to eq 0
+    end
+
+    it 'returns a column range' do
+      expect(offense.column_range).to eq 0...0
+    end
+
+    it 'returns a real column' do
+      expect(offense.real_column).to eq 1
+    end
+  end
 end
diff --git a/spec/rubocop/formatter/json_formatter_spec.rb b/spec/rubocop/formatter/json_formatter_spec.rb
index 6668b1bcfc1..c70ea332869 100644
--- a/spec/rubocop/formatter/json_formatter_spec.rb
+++ b/spec/rubocop/formatter/json_formatter_spec.rb
@@ -157,5 +157,21 @@
     it 'sets length value for :length key' do
       expect(hash[:length]).to eq(8)
     end
+
+    context 'when the location is pseudo' do
+      let(:location) { RuboCop::Cop::Offense::NO_LOCATION }
+
+      it 'returns a valid hash' do
+        expect(hash).to eq({
+                             start_line: 1,
+                             start_column: 1,
+                             last_line: 1,
+                             last_column: 0,
+                             length: 1,
+                             line: 1,
+                             column: 1
+                           })
+      end
+    end
   end
 end