diff --git a/opm/parser/eclipse/EclipseState/Schedule/DynamicVector.hpp b/opm/parser/eclipse/EclipseState/Schedule/DynamicVector.hpp
index fe2d6ffb6..8c40fdb19 100644
--- a/opm/parser/eclipse/EclipseState/Schedule/DynamicVector.hpp
+++ b/opm/parser/eclipse/EclipseState/Schedule/DynamicVector.hpp
@@ -68,6 +68,10 @@ namespace Opm {
             return m_data;
         }
 
+        bool operator==(const DynamicVector<T>& data) const {
+            return this->data() == data.data();
+        }
+
     private:
         std::vector<T> m_data;
     };