diff --git a/storm/array/TSBaseArray.hpp b/storm/array/TSBaseArray.hpp
index 11da6a4..0a95d86 100644
--- a/storm/array/TSBaseArray.hpp
+++ b/storm/array/TSBaseArray.hpp
@@ -19,6 +19,7 @@ class TSBaseArray {
 
     // Member functions
     T& operator[](uint32_t index);
+    const T& operator[](uint32_t index) const;
     void CheckArrayBounds(uint32_t index) const;
     void Constructor();
     uint32_t Count() const;
@@ -33,6 +34,12 @@ T& TSBaseArray<T>::operator[](uint32_t index) {
     return this->m_data[index];
 }
 
+template <class T>
+const T& TSBaseArray<T>::operator[](uint32_t index) const {
+    this->CheckArrayBounds(index);
+    return this->m_data[index];
+}
+
 template <class T>
 void TSBaseArray<T>::CheckArrayBounds(uint32_t index) const {
     if (index < this->Count()) {