diff --git a/lib/rubocop/ast/node/regexp_node.rb b/lib/rubocop/ast/node/regexp_node.rb
index 783c8c698..14c33b104 100644
--- a/lib/rubocop/ast/node/regexp_node.rb
+++ b/lib/rubocop/ast/node/regexp_node.rb
@@ -38,7 +38,7 @@ def interpolation?
       end
 
       # @return [Bool] if regexp uses the multiline regopt
-      def multiline?
+      def multiline_mode?
         regopt_include?(:m)
       end
 
diff --git a/spec/rubocop/ast/regexp_node_spec.rb b/spec/rubocop/ast/regexp_node_spec.rb
index f0b319bb8..580a98287 100644
--- a/spec/rubocop/ast/regexp_node_spec.rb
+++ b/spec/rubocop/ast/regexp_node_spec.rb
@@ -161,29 +161,29 @@
     end
   end
 
-  describe '#multiline?' do
+  describe '#multiline_mode?' do
     context 'with no options' do
       let(:source) { '/x/' }
 
-      it { expect(regexp_node.multiline?).to be(false) }
+      it { expect(regexp_node.multiline_mode?).to be(false) }
     end
 
     context 'with other options' do
       let(:source) { '/x/ix' }
 
-      it { expect(regexp_node.multiline?).to be(false) }
+      it { expect(regexp_node.multiline_mode?).to be(false) }
     end
 
     context 'with only m option' do
       let(:source) { '/x/m' }
 
-      it { expect(regexp_node.multiline?).to be(true) }
+      it { expect(regexp_node.multiline_mode?).to be(true) }
     end
 
     context 'with m and other options' do
       let(:source) { '/x/imx' }
 
-      it { expect(regexp_node.multiline?).to be(true) }
+      it { expect(regexp_node.multiline_mode?).to be(true) }
     end
   end