diff --git a/libraries/chain/webassembly/runtimes/eos-vm-oc/executor.cpp b/libraries/chain/webassembly/runtimes/eos-vm-oc/executor.cpp
index 8057c0e181..fe33ee3d0c 100644
--- a/libraries/chain/webassembly/runtimes/eos-vm-oc/executor.cpp
+++ b/libraries/chain/webassembly/runtimes/eos-vm-oc/executor.cpp
@@ -266,6 +266,7 @@ void executor::execute(const code_descriptor& code, memory& mem, apply_context&
 
 executor::~executor() {
    arch_prctl(ARCH_SET_GS, nullptr);
+   munmap(code_mapping, code_mapping_size);
 }
 
 }}}