diff --git a/lang/LangPrimSource/PyrUnixPrim.cpp b/lang/LangPrimSource/PyrUnixPrim.cpp
index 769be99..40be03c 100644
--- a/lang/LangPrimSource/PyrUnixPrim.cpp
+++ b/lang/LangPrimSource/PyrUnixPrim.cpp
@@ -115,7 +115,7 @@ struct sc_process {
 	bool postOutput;
 };

-static void string_popen_thread_func(struct sc_process *process)
+static void string_popen_thread_func(std::unique_ptr<sc_process> process)
 {
 	FILE *stream = process->stream;
 	pid_t pid = process->pid;
@@ -134,7 +134,7 @@ static void string_popen_thread_func(struct sc_process *process)
 	if(process->postOutput)
 		postfl("RESULT = %d\n", res);

-	delete process;
+	//delete process;

 	gLangMutex.lock();
 	if(compiledOK) {
@@ -165,7 +165,7 @@ int prString_POpen(struct VMGlobals *g, int numArgsPushed)
 	return errNone;
 #endif

-	sc_process *process = new sc_process;
+	std::unique_ptr<sc_process> process(new sc_process);
 	process->stream = sc_popen(cmdline, &process->pid, "r");
 	setvbuf(process->stream, 0, _IONBF, 0);
 	pid_t pid = process->pid;
@@ -175,11 +175,11 @@ int prString_POpen(struct VMGlobals *g, int numArgsPushed)
 	delete [] cmdline;

 	if(process->stream == NULL) {
-		delete process;
+		//delete process;
 		return errFailed;
 	}

-	thread thread(std::bind(string_popen_thread_func, process));
+	thread thread(std::bind(string_popen_thread_func, std::move(process) ));
 	thread.detach();

 	SetInt(a, pid);
@@ -237,7 +237,7 @@ int prArrayPOpen(struct VMGlobals *g, int numArgsPushed)
 		}
 	}

-	sc_process *process = new sc_process;
+	std::unique_ptr<sc_process> process (new sc_process);
 	process->stream = sc_popen_argv(filename, argv.data(), &process->pid, "r");
 	setvbuf(process->stream, 0, _IONBF, 0);
 	pid_t pid = process->pid;
@@ -245,11 +245,11 @@ int prArrayPOpen(struct VMGlobals *g, int numArgsPushed)
 	process->postOutput = IsTrue(b);

 	if(process->stream == NULL) {
-		delete process;
+		//delete process;
 		return errFailed;
 	}

-	thread thread(std::bind(string_popen_thread_func, process));
+	thread thread(std::bind(string_popen_thread_func, std::move(process)));
 	thread.detach();

 	for (int i=1; i<obj->size; ++i) {