diff --git a/libcxx/utils/libcxx/test/params.py b/libcxx/utils/libcxx/test/params.py
index 456794b9b1cce..c3732560f5e46 100644
--- a/libcxx/utils/libcxx/test/params.py
+++ b/libcxx/utils/libcxx/test/params.py
@@ -77,9 +77,6 @@
 
 
 def getStdFlag(cfg, std):
-    # TODO(LLVM-17) Remove this clang-tidy-16 work-around
-    if std == "c++23":
-        std = "c++2b"
     if hasCompileFlag(cfg, "-std=" + std):
         return "-std=" + std
     # TODO(LLVM-19) Remove the fallbacks needed for Clang 16.