diff --git a/stack.h b/stack.h
index 55ba77f45973e9ee28e789227dbe25f16d50063a..a63a63c26d18e554f6086cac7f4d6f00b360dd3a 100644
--- a/stack.h
+++ b/stack.h
@@ -3,9 +3,9 @@
 #include "Location.h"
 
 
-struct Location;
-typedef struct Stack
-{
-    Location* location;
-    struct Stack* next;
-}Stack;
\ No newline at end of file
+//struct Location;
+//typedef struct Stack
+//{
+  //  Location* location;
+    //struct Stack* next;
+//}Stack;