diff --git a/src/wrappers/memory_wrapper_internal.cpp b/src/wrappers/memory_wrapper_internal.cpp
index b3d47c30..293f25a5 100644
--- a/src/wrappers/memory_wrapper_internal.cpp
+++ b/src/wrappers/memory_wrapper_internal.cpp
@@ -9,6 +9,7 @@
 #include "memory_wrapper.h"
 #include <memory>
 #include <atomic>
+#include <cstdlib>
 #include <unordered_map>
 #include <mutex>
 #include <vector>
@@ -59,7 +60,7 @@ extern "C" void apex_memory_lights_out();
 class book_t {
 public:
     size_t saved_node_id;
-    std::atomic<size_t> totalAllocated = 0.0;
+    std::atomic<size_t> totalAllocated{0};
     std::unordered_map<void*,record_t> memoryMap;
     std::mutex mapMutex;
     ~book_t() {