diff --git a/sandboxed_api/sandbox2/policybuilder.cc b/sandboxed_api/sandbox2/policybuilder.cc
index 676da05..dbb4056 100644
--- a/sandboxed_api/sandbox2/policybuilder.cc
+++ b/sandboxed_api/sandbox2/policybuilder.cc
@@ -207,17 +207,6 @@ PolicyBuilder& PolicyBuilder::AllowLlvmSanitizers() {
     // https://github.com/llvm/llvm-project/blob/62ec4ac90738a5f2d209ed28c822223e58aaaeb7/compiler-rt/lib/sanitizer_common/sanitizer_allocator_secondary.h#L98
     AllowMmap();
   }
-  if constexpr (sapi::sanitizers::IsTSan()) {
-    AllowMmap();
-    AllowSyscall(__NR_munmap);
-    AddPolicyOnSyscall(__NR_mprotect,
-                       {
-                           ARG_32(2),
-                           BPF_STMT(BPF_AND | BPF_ALU | BPF_K,
-                                    ~uint32_t{PROT_READ | PROT_WRITE}),
-                           JEQ(0, ALLOW),
-                       });
-  }
   return *this;
 }