diff --git a/csrc/emulator.cc b/csrc/emulator.cc
index dd01bfc8..bbd74b23 100644
--- a/csrc/emulator.cc
+++ b/csrc/emulator.cc
@@ -82,7 +82,8 @@ int main(int argc, char** argv)
     load_mem(mm->get_data(), loadmem);
 
   // Instantiate HTIF
-  htif = new htif_emulator_t(std::vector<std::string>(argv + 1, argv + argc));
+  htif = new htif_emulator_t(memsz_mb,
+          std::vector<std::string>(argv + 1, argv + argc));
   int htif_bits = tile.Top__io_host_in_bits.width();
   assert(htif_bits % 8 == 0 && htif_bits <= val_n_bits());
 
diff --git a/csrc/htif_emulator.h b/csrc/htif_emulator.h
index 9dbc0ba4..9cd216c7 100644
--- a/csrc/htif_emulator.h
+++ b/csrc/htif_emulator.h
@@ -8,9 +8,10 @@
 class htif_emulator_t : public htif_pthread_t
 {
  public:
-  htif_emulator_t(const std::vector<std::string>& args)
+  htif_emulator_t(uint32_t memsz_mb, const std::vector<std::string>& args)
     : htif_pthread_t(args)
   {
+    this->_memsz_mb = memsz_mb;
   }
 
   void set_clock_divisor(int divisor, int hold_cycles)
@@ -23,6 +24,11 @@ class htif_emulator_t : public htif_pthread_t
     set_clock_divisor(5, 2);
     htif_pthread_t::start();
   }
+
+  uint32_t mem_mb() { return _memsz_mb; }
+
+ private:
+  uint32_t _memsz_mb;
 };
 
 #endif