diff --git a/src/libs/antares/study/header.cpp b/src/libs/antares/study/header.cpp
index 4b751d75c7..029fd88742 100644
--- a/src/libs/antares/study/header.cpp
+++ b/src/libs/antares/study/header.cpp
@@ -166,26 +166,33 @@ bool StudyHeader::internalLoadFromINIFile(const IniFile& ini, bool warnings)
         }
     }
 
+    if (warnings)
+    {
+        logs.error() << "Study header: Invalid format";
+    }
+    return false;
+}
+
+bool StudyHeader::validateVersion()
+{
     if (version >= StudyVersion(7, 0))
     {
         if (version > Data::StudyVersion::latest())
         {
-            if (warnings)
-            {
-                logs.error() << "Header: This version is not supported (version found:"
-                             << version.toString()
-                             << ", expected: <=" << Data::StudyVersion::latest().toString() << ')';
-            }
+            logs.error() << "Header: This version is not supported (version found:"
+                << version.toString()
+                << ", expected: <=" << Data::StudyVersion::latest().toString() << ')';
+
             return false;
         }
-        return true;
     }
-
-    if (warnings)
+    else
     {
-        logs.error() << "Study header: Invalid format";
+        logs.error() << "Version before 7.0 not supported, please upgrade";
+        return false;
     }
-    return false;
+
+    return true;
 }
 
 bool StudyHeader::loadFromFile(const AnyString& filename, bool warnings)
diff --git a/src/libs/antares/study/include/antares/study/header.h b/src/libs/antares/study/include/antares/study/header.h
index ec513143ec..aea7e0f35c 100644
--- a/src/libs/antares/study/include/antares/study/header.h
+++ b/src/libs/antares/study/include/antares/study/header.h
@@ -55,7 +55,6 @@ class StudyHeader final
     */
     static bool readVersionFromFile(const std::filesystem::path& filename, std::string& version);
 
-public:
     //! \name Constructor & Destructor
     //@{
     /*!
@@ -109,7 +108,8 @@ class StudyHeader final
      */
     static StudyVersion tryToFindTheVersion(const std::string& folder);
 
-public:
+    bool validateVersion();
+
     //! Caption of the study
     Yuni::String caption;
 
diff --git a/src/libs/antares/study/load.cpp b/src/libs/antares/study/load.cpp
index 00214717e8..b62872f350 100644
--- a/src/libs/antares/study/load.cpp
+++ b/src/libs/antares/study/load.cpp
@@ -47,6 +47,12 @@ bool Study::internalLoadHeader(const String& path)
         return false;
     }
 
+    if (!header.validateVersion())
+    {
+        logs.error() << path << ": error with the version, aborting";
+        return false;
+    }
+
     // Informations about the study
     logs.info();
     logs.notice() << "Preparing " << header.caption << "...";