diff --git a/libc/docs/CMakeLists.txt b/libc/docs/CMakeLists.txt
index f88d7c27f9f6b3f..04eaa7f1b8a5dc8 100644
--- a/libc/docs/CMakeLists.txt
+++ b/libc/docs/CMakeLists.txt
@@ -45,7 +45,8 @@ if (SPHINX_FOUND)
       locale
       net/if
       netinet/in
-      pthread
+      # TODO: https://github.com/llvm/llvm-project/issues/123821
+      # pthread
       setjmp
       signal
       stdbit
diff --git a/libc/docs/headers/index.rst b/libc/docs/headers/index.rst
index 858b2142defa921..4a66d68ed902d84 100644
--- a/libc/docs/headers/index.rst
+++ b/libc/docs/headers/index.rst
@@ -17,7 +17,6 @@ Implementation Status
    math/index.rst
    net/if
    netinet/in
-   pthread
    search
    setjmp
    signal
@@ -37,3 +36,6 @@ Implementation Status
    uchar
    wchar
    wctype
+..
+   TODO: https://github.com/llvm/llvm-project/issues/123821
+   pthread