diff --git a/sandboxed_api/sandbox2/executor.cc b/sandboxed_api/sandbox2/executor.cc
index 0474a27..8552f72 100644
--- a/sandboxed_api/sandbox2/executor.cc
+++ b/sandboxed_api/sandbox2/executor.cc
@@ -60,6 +60,12 @@ Executor::Executor(int exec_fd, const std::string& path,
   SetDefaultCwd();
 }
 
+Executor::~Executor() {
+  if (client_comms_fd_ != -1) {
+    close(client_comms_fd_);
+  }
+}
+
 std::vector<std::string> Executor::CopyEnviron() {
   std::vector<std::string> environ_copy;
   util::CharPtrArrToVecString(environ, &environ_copy);
diff --git a/sandboxed_api/sandbox2/executor.h b/sandboxed_api/sandbox2/executor.h
index e3515b4..2333dd5 100644
--- a/sandboxed_api/sandbox2/executor.h
+++ b/sandboxed_api/sandbox2/executor.h
@@ -72,6 +72,8 @@ class Executor final {
                  /*enable_sandboxing_pre_execve=*/false,
                  /*libunwind_sbox_for_pid=*/0, fork_client) {}
 
+  ~Executor();
+
   // Creates a new process which will act as a custom ForkServer. Should be used
   // with custom fork servers only.
   // This function returns immediately and returns a nullptr on failure.