diff --git a/runtime/runtime.cc b/runtime/runtime.cc
index f9e5338..bcb9e0c 100644
--- a/runtime/runtime.cc
+++ b/runtime/runtime.cc
@@ -196,6 +196,7 @@
   Thread::Shutdown();
   QuasiAtomic::Shutdown();
   verifier::MethodVerifier::Shutdown();
+  MemMap::Shutdown();
   // TODO: acquire a static mutex on Runtime to avoid racing.
   CHECK(instance_ == nullptr || instance_ == this);
   instance_ = nullptr;
@@ -652,6 +653,8 @@
 bool Runtime::Init(const RuntimeOptions& raw_options, bool ignore_unrecognized) {
   CHECK_EQ(sysconf(_SC_PAGE_SIZE), kPageSize);
 
+  MemMap::Init();
+
   std::unique_ptr<ParsedOptions> options(ParsedOptions::Create(raw_options, ignore_unrecognized));
   if (options.get() == nullptr) {
     LOG(ERROR) << "Failed to parse options";