diff --git a/MMVII/src/Bench/BenchGlob.cpp b/MMVII/src/Bench/BenchGlob.cpp
index 9e82c0ad40..35d10da90b 100755
--- a/MMVII/src/Bench/BenchGlob.cpp
+++ b/MMVII/src/Bench/BenchGlob.cpp
@@ -95,11 +95,7 @@ bool  cParamExeBench::NewBench(const std::string & aName,bool ExactMatch)
        mNbExe++;
        mInsideFunc = true;
        StdOut() << "  Bench : " << aName << std::endl;
-
-       std::string aSeedStr = aName + "/" + std::to_string(mCurLev);
-       std::size_t aSeedVal = std::hash<std::string>{}(aSeedStr);
-       // StdOut() << "     reinit seed to: " << aSeedStr << " / " << aSeedVal << "\n";
-       cRandGenerator::TheOne()->setSeed(aSeedVal);
+       cRandGenerator::TheOne()->setSeed(mCurLev);
    }
    return  mInsideFunc;
 }
diff --git a/MMVII/src/UtiMaths/uti_rand.cpp b/MMVII/src/UtiMaths/uti_rand.cpp
index 95f3876a09..e243794f63 100755
--- a/MMVII/src/UtiMaths/uti_rand.cpp
+++ b/MMVII/src/UtiMaths/uti_rand.cpp
@@ -65,10 +65,6 @@ void OneBench_Random_Generator(cParamExeBench & aParam)
     for (auto &v: aRefSequenceRawSeed0)
         MMVII_INTERNAL_ASSERT_bench(cRandGenerator::TheOne()->next()==v,"Random Seq Raw Seed 0");
 
-    // test hashing function used for seed reset on each bench
-    std::size_t aHashVal = std::hash<std::string>{}("Toto");
-    MMVII_INTERNAL_ASSERT_bench(aHashVal==4574758675877946257,"Hash of string");
-
     already_done = true;
 }