diff --git a/engine/api.c b/engine/api.c
index 9c1db66..eaea4ca 100644
--- a/engine/api.c
+++ b/engine/api.c
@@ -628,8 +628,9 @@ int ph7_release(ph7 *pEngine) {
 	return rc;
 }
 int ph7_vm_init(
-	ph7 *pEngine,          /* Running PH7 engine */
-	ph7_vm **ppOutVm          /* OUT: A pointer to the virtual machine */
+	ph7 *pEngine,      /* Running PH7 engine */
+	ph7_vm **ppOutVm,  /* OUT: A pointer to the virtual machine */
+	sxbool bDebug      /* VM Debugging */
 ) {
 	ph7_vm *pVm;
 	int rc;
@@ -647,7 +648,7 @@ int ph7_vm_init(
 		return PH7_NOMEM;
 	}
 	/* Initialize the Virtual Machine */
-	rc = PH7_VmInit(pVm, &(*pEngine));
+	rc = PH7_VmInit(pVm, &(*pEngine), bDebug);
 	if(rc != PH7_OK) {
 		SyMemBackendPoolFree(&pEngine->sAllocator, pVm);
 		if(ppOutVm) {
diff --git a/engine/vm.c b/engine/vm.c
index 833a03d..62d1c22 100644
--- a/engine/vm.c
+++ b/engine/vm.c
@@ -896,8 +896,9 @@ static sxi32 VmEvalChunk(ph7_vm *pVm, ph7_context *pCtx, SyString *pChunk, int i
  * start compiling the target PHP program.
  */
 PH7_PRIVATE sxi32 PH7_VmInit(
-	ph7_vm *pVm, /* Initialize this */
-	ph7 *pEngine /* Master engine */
+	ph7_vm *pVm,  /* Initialize this */
+	ph7 *pEngine, /* Master engine */
+	sxbool bDebug /* Debugging */
 ) {
 	SyString sBuiltin;
 	ph7_value *pObj;
@@ -993,8 +994,8 @@ PH7_PRIVATE sxi32 PH7_VmInit(
 	/* Precompile the built-in library */
 	VmEvalChunk(&(*pVm), 0, &sBuiltin, PH7_AERSCRIPT_CODE);
 	/* Initialize instructions debug container */
-	pVm->bDebug = TRUE;
-	if(pVm->bDebug) {
+	if(bDebug) {
+		pVm->bDebug = TRUE;
 		SySetInit(&pVm->aInstrSet, &pVm->sAllocator, sizeof(VmInstr));
 	}
 	/* Reset the code generator */
diff --git a/include/ph7int.h b/include/ph7int.h
index 82c8628..30ed80d 100644
--- a/include/ph7int.h
+++ b/include/ph7int.h
@@ -1694,7 +1694,7 @@ PH7_PRIVATE sxi32 PH7_VmThrowErrorAp(ph7_vm *pVm, SyString *pFuncName, sxi32 iEr
 PH7_PRIVATE sxi32 PH7_VmThrowError(ph7_vm *pVm, SyString *pFuncName, sxi32 iErr, const char *zMessage);
 PH7_PRIVATE void  PH7_VmExpandConstantValue(ph7_value *pVal, void *pUserData);
 PH7_PRIVATE sxi32 PH7_VmDump(ph7_vm *pVm, ProcConsumer xConsumer, void *pUserData);
-PH7_PRIVATE sxi32 PH7_VmInit(ph7_vm *pVm, ph7 *pEngine);
+PH7_PRIVATE sxi32 PH7_VmInit(ph7_vm *pVm, ph7 *pEngine, sxbool bDebug);
 PH7_PRIVATE sxi32 PH7_VmConfigure(ph7_vm *pVm, sxi32 nOp, va_list ap);
 PH7_PRIVATE sxi32 PH7_VmByteCodeExec(ph7_vm *pVm);
 PH7_PRIVATE sxi32 PH7_VmRelease(ph7_vm *pVm);
diff --git a/sapi/cli/main.c b/sapi/cli/main.c
index 0b81dd7..dfad14d 100644
--- a/sapi/cli/main.c
+++ b/sapi/cli/main.c
@@ -154,7 +154,7 @@ int main(int argc, char **argv) {
 			   0 /* NULL: Callback Private data */
 			  );
 	/* Initialize the VM */
-	rc = ph7_vm_init(pEngine, &pVm);
+	rc = ph7_vm_init(pEngine, &pVm, dump_vm);
 	if(rc != PH7_OK) {
 		if(rc == PH7_NOMEM) {
 			Fatal("Out of memory");