diff --git a/src/tests/src/libs/antares/study/short-term-storage-input/short-term-storage-input-output.cpp b/src/tests/src/libs/antares/study/short-term-storage-input/short-term-storage-input-output.cpp
index 83965049e6..387e3af5cf 100644
--- a/src/tests/src/libs/antares/study/short-term-storage-input/short-term-storage-input-output.cpp
+++ b/src/tests/src/libs/antares/study/short-term-storage-input/short-term-storage-input-output.cpp
@@ -115,6 +115,7 @@ void createIniFile(bool enabled)
     outfile << "withdrawalnominalcapacity = 900.000000" << std::endl;
     outfile << "reservoircapacity = 31200.000000" << std::endl;
     outfile << "efficiency = 0.75" << std::endl;
+    outfile << "efficiencyWithdrawal = 0.9" << std::endl;
     outfile << "initiallevel = 0.50000" << std::endl;
     outfile << "enabled = " << (enabled ? "true" : "false") << std::endl;
     outfile.close();
@@ -134,6 +135,7 @@ void createIniFileWrongValue()
     outfile << "withdrawalnominalcapacity = -900.000000" << std::endl;
     outfile << "reservoircapacity = -31200.000000" << std::endl;
     outfile << "efficiency = 4" << std::endl;
+    outfile << "efficiencyWithdrawal = -2" << std::endl;
     outfile << "initiallevel = -0.50000" << std::endl;
 
     outfile.close();