diff --git a/harbour/source/vm/hvm.c b/harbour/source/vm/hvm.c
index 4b1cd6649f..f02bdcbf50 100644
--- a/harbour/source/vm/hvm.c
+++ b/harbour/source/vm/hvm.c
@@ -231,6 +231,7 @@ void hb_vmInit( void )
 
    /* initialize internal data structures */
    s_aStatics.type = IT_NIL;
+   hb_stack.pItems = NULL; /* keep this here as it is used by fm.c */
    hb_stack.Return.type = IT_NIL;
 
    hb_xinit();