diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9ba5bd3a..e431d589 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -141,7 +141,7 @@ jobs:
             install: clang-16
           - toolset: clang
             compiler: clang++-17
-            cxxstd: "11,14,17,20,2b"
+            cxxstd: "11,14,17,20"
             os: ubuntu-24.04
             install: clang-17
           - toolset: clang