diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index a2006e16c7e8..c2ed4cc4cdae 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -179,6 +179,13 @@ jobs:
            github.event_name == 'pull_request'
            && contains(github.event.pull_request.body, '[test_scala2_library_tasty]')
          )
+         || (
+           github.event_name == 'pull_request'
+           && (   contains(github.event.pull_request.changed_files, 'scala2-library-cc/') 
+               || contains(github.event.pull_request.changed_files, 'scala2-library-cc-tasty/')
+               || contains(github.event.pull_request.changed_files, 'compiler/src/dotty/tools/dotc/cc/')
+              )
+         )
          || (
            github.event_name == 'workflow_dispatch'
            && github.repository == 'scala/scala3'
diff --git a/compiler/src/dotty/tools/dotc/cc/CaptureSet.scala b/compiler/src/dotty/tools/dotc/cc/CaptureSet.scala
index 5be4f6a2d1cd..573edc65a416 100644
--- a/compiler/src/dotty/tools/dotc/cc/CaptureSet.scala
+++ b/compiler/src/dotty/tools/dotc/cc/CaptureSet.scala
@@ -22,6 +22,7 @@ import CCState.*
 /** A class for capture sets. Capture sets can be constants or variables.
  *  Capture sets support inclusion constraints <:< where <:< is subcapturing.
  *
+ *
  *  They also allow
  *   - mapping with functions from elements to capture sets
  *   - filtering with predicates on elements