diff --git a/Modules/ThirdParty/OssimPlugins/src/ossim/ossimSentinel1Model.cpp b/Modules/ThirdParty/OssimPlugins/src/ossim/ossimSentinel1Model.cpp
index 86da8453594dbf36cfadc1bb367881b2eb4e966e..6a5d5992e4b155b09882dda200e70ff50adc2a2f 100644
--- a/Modules/ThirdParty/OssimPlugins/src/ossim/ossimSentinel1Model.cpp
+++ b/Modules/ThirdParty/OssimPlugins/src/ossim/ossimSentinel1Model.cpp
@@ -151,6 +151,9 @@ namespace ossimplugins
       kwl.addList(theManifestKwl, true);
       kwl.addList(theProductKwl,  true);
 
+      const unsigned int k_version = 2;
+      add(kwl, HEADER_PREFIX, "version", k_version);
+      
       return ossimSensorModel::saveState(kwl, prefix);
    }