diff --git a/src/ComputingTasks.cc b/src/ComputingTasks.cc
index 616cd2c352c37d786e9eb92469db525930560aaa..74918eebd50981816f6850e31c3de6417461ed26 100644
--- a/src/ComputingTasks.cc
+++ b/src/ComputingTasks.cc
@@ -5216,7 +5216,9 @@ VarExpectationModelStatement::writeJsonOutput(ostream &output) const
          << R"("horizon": ")" << horizon << R"(", )"
          << R"("discount": ")";
   discount->writeOutput(output);
-  output << R"("})";
+  output << R"(", )"
+         << R"("time_shift": )" << time_shift
+         << R"(})";
 }
 
 MatchedMomentsStatement::MatchedMomentsStatement(const SymbolTable &symbol_table_arg,