diff --git a/ext/rfmt/src/emitter/mod.rs b/ext/rfmt/src/emitter/mod.rs
index 02c430b..5e4646e 100644
--- a/ext/rfmt/src/emitter/mod.rs
+++ b/ext/rfmt/src/emitter/mod.rs
@@ -1196,6 +1196,16 @@ impl Emitter {
             if let Some(text) = self.source.get(start..end) {
                 // Trim trailing whitespace but preserve the content
                 write!(self.buffer, "{}", text.trim_end())?;
+
+                // Mark comments within the extracted range as emitted
+                for (idx, comment) in self.all_comments.iter().enumerate() {
+                    if !self.emitted_comment_indices.contains(&idx)
+                        && comment.location.start_offset >= start
+                        && comment.location.end_offset <= end
+                    {
+                        self.emitted_comment_indices.insert(idx);
+                    }
+                }
             }
         }
 
diff --git a/spec/rfmt_spec.rb b/spec/rfmt_spec.rb
index 36220ee..9a3a470 100644
--- a/spec/rfmt_spec.rb
+++ b/spec/rfmt_spec.rb
@@ -253,6 +253,33 @@ def bar = 42
         source = "[1, 2].map { |x| x * 2 } # double\n"
         expect(Rfmt.format(source)).to eq("[1, 2].map { |x| x * 2 } # double\n")
       end
+
+      it 'does not duplicate inline comments on method chain with block' do
+        source = <<~RUBY
+          some_method # comment
+            .method_with_block { do_something }
+        RUBY
+
+        result = Rfmt.format(source)
+
+        # The comment should appear exactly once, not be duplicated
+        expect(result.scan('# comment').count).to eq(1)
+        expect(result).to eq(source)
+      end
+
+      it 'does not duplicate inline comments on method chain with do-end block' do
+        source = <<~RUBY
+          some_method # comment
+            .method_with_block do
+              do_something
+            end
+        RUBY
+
+        result = Rfmt.format(source)
+
+        # The comment should appear exactly once
+        expect(result.scan('# comment').count).to eq(1)
+      end
     end
   end