diff --git a/third_party/llvm-16.0/configs/linux/include/llvm/Config/config.h b/third_party/llvm-16.0/configs/linux/include/llvm/Config/config.h
index 8788e3c..5e169c0 100644
--- a/third_party/llvm-16.0/configs/linux/include/llvm/Config/config.h
+++ b/third_party/llvm-16.0/configs/linux/include/llvm/Config/config.h
@@ -222,7 +222,7 @@
 #define HAVE_UNISTD_H 1
 
 /* Define to 1 if you have the <valgrind/valgrind.h> header file. */
-#define HAVE_VALGRIND_VALGRIND_H 1
+/* #undef HAVE_VALGRIND_VALGRIND_H */
 
 /* Have host's _alloca */
 /* #undef HAVE__ALLOCA */