diff --git a/libstdc++-v3/include/std/stop_token b/libstdc++-v3/include/std/stop_token
index fffc215d2a847598c993072b4b4d78b21d98fd52..d0cfcf3109760bf3c452423a984f06e6374e6319 100644
--- a/libstdc++-v3/include/std/stop_token
+++ b/libstdc++-v3/include/std/stop_token
@@ -107,7 +107,6 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
     }
 
 #ifndef __cpp_lib_semaphore
-    // TODO: replace this with a real implementation of std::binary_semaphore
     struct binary_semaphore
     {
       explicit binary_semaphore(int __d) : _M_counter(__d > 0) { }