diff --git a/src/Evaluator/EvalValues/NumericalTableEvalValue.hpp b/src/Evaluator/EvalValues/NumericalTableEvalValue.hpp
index ff2112b..f62e15a 100644
--- a/src/Evaluator/EvalValues/NumericalTableEvalValue.hpp
+++ b/src/Evaluator/EvalValues/NumericalTableEvalValue.hpp
@@ -60,7 +60,11 @@ namespace Porygon::Evaluation {
 
         inline void SetIndexValue(const EvalValue *key, const EvalValue* value) const final {
             auto index = key->EvaluateInteger();
-            this->_table->at(index - 1) = value;
+            index--;
+            if (this->_table->size() <= index){
+                this->_table->resize(index);
+            }
+            this->_table->at(index) = value;
         }
 
         [[nodiscard]]
@@ -71,7 +75,7 @@ namespace Porygon::Evaluation {
             return _table;
         }
 
-        EvalValue *UnaryOperation(Binder::BoundUnaryOperation operation) const override;;
+        [[nodiscard]] EvalValue *UnaryOperation(Binder::BoundUnaryOperation operation) const override;;
     };
 }
 
diff --git a/src/ScriptTypes/ScriptType.hpp b/src/ScriptTypes/ScriptType.hpp
index 059f311..b63bb76 100644
--- a/src/ScriptTypes/ScriptType.hpp
+++ b/src/ScriptTypes/ScriptType.hpp
@@ -178,6 +178,10 @@ namespace Porygon{
         inline shared_ptr<const ScriptType> GetIteratorKeyType() const final{
             return NumericScriptType::AwareInt;
         }
+
+        [[nodiscard]] bool IsCountable() const override {
+            return true;
+        }
     };
 }