diff --git a/riscv/processor.cc b/riscv/processor.cc
index e931c6b3..39848b48 100644
--- a/riscv/processor.cc
+++ b/riscv/processor.cc
@@ -32,6 +32,7 @@ processor_t::processor_t(sim_t* _sim, mmu_t* _mmu, uint32_t _id)
 
 processor_t::~processor_t()
 {
+  delete disassembler;
 }
 
 void state_t::reset()
diff --git a/riscv/processor.h b/riscv/processor.h
index 9e52d3d1..e2847fae 100644
--- a/riscv/processor.h
+++ b/riscv/processor.h
@@ -5,7 +5,6 @@
 #include "decode.h"
 #include "config.h"
 #include <cstring>
-#include <memory>
 #include <vector>
 
 class processor_t;
@@ -80,7 +79,7 @@ private:
   sim_t* sim;
   mmu_t* mmu; // main memory is always accessed via the mmu
   extension_t* ext;
-  std::unique_ptr<disassembler_t> disassembler;
+  disassembler_t* disassembler;
   state_t state;
   uint32_t id;
   bool run; // !reset