diff --git a/features_c2y.yaml b/features_c2y.yaml
index a4b9932..47c73c9 100644
--- a/features_c2y.yaml
+++ b/features_c2y.yaml
@@ -336,6 +336,7 @@ features:
   - desc: "Earthly Demon XV: Definition of Main"
     paper: N3623
     support:
+      - GCC
       - Clang
       - Xcode ?