diff --git a/libc/CMakeLists.txt b/libc/CMakeLists.txt
--- a/libc/CMakeLists.txt
+++ b/libc/CMakeLists.txt
@@ -161,7 +161,9 @@
   add_subdirectory(fuzzing)
 endif()
 
-add_subdirectory(benchmarks)
+if(LLVM_INCLUDE_BENCHMARKS)
+  add_subdirectory(benchmarks)
+endif()
 
 if (LIBC_INCLUDE_DOCS)
   add_subdirectory(docs)