diff --git a/libc/test/include/CMakeLists.txt b/libc/test/include/CMakeLists.txt
index 6a586cd715cf80..2730fa0d66db7e 100644
--- a/libc/test/include/CMakeLists.txt
+++ b/libc/test/include/CMakeLists.txt
@@ -17,7 +17,7 @@ add_libc_test(
 
 # stdbit_test only tests our generated stdbit.h, which is not generated in
 # overlay mode.
-if (LLVM_LIBC_FULL_BUILD)
+if(LLVM_LIBC_FULL_BUILD AND libc.include.stdbit IN_LIST TARGET_PUBLIC_HEADERS)
   add_libc_test(
     stdbit_test
     SUITE