diff --git a/bigint/build/bin/testbip b/bigint/build/bin/testbip
index 8ff35dc..be10a5a 100755
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diff --git a/bigint/build/lib/libbigint.a b/bigint/build/lib/libbigint.a
index f13c526..631f6e5 100644
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diff --git a/bigint/src/libbigint.a b/bigint/src/libbigint.a
index f13c526..631f6e5 100644
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diff --git a/bigint/tst/testbip b/bigint/tst/testbip
index 8ff35dc..be10a5a 100755
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diff --git a/njvm.o b/njvm.o
index 59baaa5..15cff30 100644
Binary files a/njvm.o and b/njvm.o differ
diff --git a/stackslot.c b/stackslot.c
index 659a5eb..8e59ee6 100644
--- a/stackslot.c
+++ b/stackslot.c
@@ -1,14 +1,12 @@
+#ifndef STACKSLOT
+#define STACKSLOT
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include "objref.c"
 
-#ifndef STACKSLOT
-#define STACKSLOT
 typedef int Object;
-typedef struct ObjRef{
-    unsigned int size;
-    unsigned char data[1];
-} *ObjRef;
+
 
 typedef struct {
     bool isObjRef;