diff --git a/CMakeLists.txt b/CMakeLists.txt
index d44b8df..85bf666 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,7 +5,8 @@ set(CMAKE_C_STANDARD 99)
 
 add_compile_options(-g -Wall -pedantic)
 
-add_executable(njvm njvm.c)
+add_executable(njvm njvm.c
+        njvm.h)
 
 # Include directories for njvm executable
 target_include_directories(njvm PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/bigint/build/include)
diff --git a/bigint/build/bin/testbip b/bigint/build/bin/testbip
index 7c94e48..7d91ca7 100755
Binary files a/bigint/build/bin/testbip and b/bigint/build/bin/testbip differ
diff --git a/bigint/build/lib/libbigint.a b/bigint/build/lib/libbigint.a
index 2907fce..4c9a702 100644
Binary files a/bigint/build/lib/libbigint.a and b/bigint/build/lib/libbigint.a differ
diff --git a/bigint/src/libbigint.a b/bigint/src/libbigint.a
index 2907fce..4c9a702 100644
Binary files a/bigint/src/libbigint.a and b/bigint/src/libbigint.a differ
diff --git a/bigint/tst/testbip b/bigint/tst/testbip
index 7c94e48..7d91ca7 100755
Binary files a/bigint/tst/testbip and b/bigint/tst/testbip differ
diff --git a/njvm.c b/njvm.c
index 639dd7e..86d44fc 100644
--- a/njvm.c
+++ b/njvm.c
@@ -417,23 +417,23 @@ void garbageCollector() {
     gcCount++;
 }
 
-ObjRef alloc(unsigned int size) {
-    if (freeHeapPtr + size > halfHeapPtr) {
+ObjRef alloc(unsigned int objectSize) {
+    if (freeHeapPtr + objectSize > halfHeapPtr) {
         garbageCollector();
-        if (freeHeapPtr + size > halfHeapPtr) {
+        if (freeHeapPtr + objectSize > halfHeapPtr) {
             fprintf(stderr, "Heap is full\n");
             exit(1);
         }
     }
     ObjRef or;
     or = (ObjRef) freeHeapPtr;
-    freeHeapPtr = freeHeapPtr + size;
+    freeHeapPtr = freeHeapPtr + objectSize;
     return or;
 }
 
 void heapAllocator(int n) {
     heapSizeKiB = n;
-    if ((heap = alloc(n * 1024)) == NULL) {
+    if ((heap = malloc(n * 1024)) == NULL) {
         perror("malloc");
         exit(1);
     }
@@ -503,7 +503,7 @@ int main(int argc, char *argv[]) {
                 run = 1;
             }
         }
-        //heapAllocator(argVheapSizeKiB);
+        heapAllocator(argVheapSizeKiB);
         // Init the sda
         ObjRef s[sizeSDA];
         sda.size = &sizeSDA;
diff --git a/njvm.h b/njvm.h
new file mode 100644
index 0000000..57c9238
--- /dev/null
+++ b/njvm.h
@@ -0,0 +1,11 @@
+//
+// Created by Elias Bennour on 28.01.24.
+//
+
+#ifndef NINJA_NJVM_H
+#define NINJA_NJVM_H
+#include "objref.c"
+
+ObjRef alloc(unsigned int size);
+
+#endif //NINJA_NJVM_H
diff --git a/njvm.o b/njvm.o
index 57daa1f..e458976 100644
Binary files a/njvm.o and b/njvm.o differ
diff --git a/support.o b/support.o
index d48f255..3fa5a66 100644
Binary files a/support.o and b/support.o differ