diff --git a/src/UserData/UserDataCollectionValue.hpp b/src/UserData/UserDataCollectionValue.hpp
index 32eda09..bc41b8c 100644
--- a/src/UserData/UserDataCollectionValue.hpp
+++ b/src/UserData/UserDataCollectionValue.hpp
@@ -7,6 +7,8 @@
 #include "../Evaluator/EvalValues/EvalValue.hpp"
 #include "../Utilities/Random.hpp"
 
+using namespace Porygon::Evaluation;
+
 namespace Porygon::UserData {
     class UserDataCollectionHelper{
         void* _parentObject;