diff --git a/features_cpp23.yaml b/features_cpp23.yaml
index 9181cc7..d6a7dec 100644
--- a/features_cpp23.yaml
+++ b/features_cpp23.yaml
@@ -1010,7 +1010,7 @@ features:
     paper: P1264
     lib: true
     support:
-      - GCC ?
+      - GCC
       - Clang 9
       - MSVC
       - Xcode 12