diff --git a/src/libs/antares/study/parts/short-term-storage/container.cpp b/src/libs/antares/study/parts/short-term-storage/container.cpp
index 31c25fdfdf..f26aff9929 100644
--- a/src/libs/antares/study/parts/short-term-storage/container.cpp
+++ b/src/libs/antares/study/parts/short-term-storage/container.cpp
@@ -107,11 +107,14 @@ static void loadHours(const std::string& hoursStr, AdditionalConstraints& additi
     }
 }
 
-static void readRHS(AdditionalConstraints& additionalConstraints, const fs::path& parentPath)
+static bool readRHS(AdditionalConstraints& additionalConstraints, const fs::path& rhsPath)
 {
-    loadFile(parentPath / ("rhs_" + additionalConstraints.name + ".txt"),
-             additionalConstraints.rhs);
-    fillIfEmpty(additionalConstraints.rhs, 0.0);
+    const auto ret = loadFile(rhsPath, additionalConstraints.rhs);
+    if (ret)
+    {
+        fillIfEmpty(additionalConstraints.rhs, 0.0);
+    }
+    return ret;
 }
 
 bool STStorageInput::loadAdditionalConstraints(const fs::path& parentPath)
@@ -157,7 +160,19 @@ bool STStorageInput::loadAdditionalConstraints(const fs::path& parentPath)
             }
         }
 
-        readRHS(additionalConstraints, parentPath);
+        // We don't want load RHS and link the STS time if the constraint is disabled
+        if (!additionalConstraints.enabled)
+        {
+            return true;
+        }
+
+        if (const auto rhsPath = parentPath / ("rhs_" + additionalConstraints.name + ".txt");
+            !readRHS(additionalConstraints, rhsPath))
+        {
+            logs.error() << "Error while reading rhs file: " << rhsPath;
+            return false;
+        }
+
         if (auto [ok, error_msg] = additionalConstraints.validate(); !ok)
         {
             logs.error() << "Invalid constraint in section: " << section->name;
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 583027c95b..0a6f355375 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
@@ -805,7 +805,7 @@ BOOST_AUTO_TEST_CASE(loadAdditionalConstraints_MalformedRhsFile)
 
     std::ofstream iniFile(testPath / "additional-constraints.ini");
     iniFile << "[constraint1]\n";
-    iniFile << "cluster=ClusterA\n";
+    iniFile << "cluster=cluster1\n";
     iniFile << "variable=injection\n";
     iniFile << "operator=less\n";
     iniFile << "hours=[1,2,3]\n";
@@ -817,12 +817,14 @@ BOOST_AUTO_TEST_CASE(loadAdditionalConstraints_MalformedRhsFile)
 
     ShortTermStorage::STStorageInput storageInput;
     ShortTermStorage::STStorageCluster cluster;
-    cluster.id = "ClusterA";
+    cluster.id = "cluster1";
     storageInput.storagesByIndex.push_back(cluster);
 
     bool result = storageInput.loadAdditionalConstraints(testPath);
     BOOST_CHECK_EQUAL(result, false);
-
+    /*"Error while reading rhs file: " << "rhs_" << additionalConstraints.name
+    <<
+    ".txt";*/
     std::filesystem::remove_all(testPath);
 }
 
@@ -833,7 +835,7 @@ BOOST_AUTO_TEST_CASE(loadAdditionalConstraints_IncompleteRhsFile)
 
     std::ofstream iniFile(testPath / "additional-constraints.ini");
     iniFile << "[constraint1]\n";
-    iniFile << "cluster=ClusterA\n";
+    iniFile << "cluster=cluster1\n";
     iniFile << "variable=injection\n";
     iniFile << "operator=less\n";
     iniFile << "hours=[1,2,3]\n";
@@ -848,7 +850,7 @@ BOOST_AUTO_TEST_CASE(loadAdditionalConstraints_IncompleteRhsFile)
 
     ShortTermStorage::STStorageInput storageInput;
     ShortTermStorage::STStorageCluster cluster;
-    cluster.id = "ClusterA";
+    cluster.id = "cluster1";
     storageInput.storagesByIndex.push_back(cluster);
 
     bool result = storageInput.loadAdditionalConstraints(testPath);