diff --git a/core/genesis_test.go b/core/genesis_test.go
index 055be2796c..056c1c195f 100644
--- a/core/genesis_test.go
+++ b/core/genesis_test.go
@@ -209,3 +209,33 @@ func TestGenesisHashes(t *testing.T) {
 		}
 	}
 }
+
+func TestGenesis_Commit(t *testing.T) {
+	genesis := &Genesis{
+		BaseFee: big.NewInt(params.InitialBaseFee),
+		Config:  params.TestChainConfig,
+		// difficulty is nil
+	}
+
+	db := rawdb.NewMemoryDatabase()
+	genesisBlock, err := genesis.Commit(db)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if genesis.Difficulty != nil {
+		t.Fatalf("assumption wrong")
+	}
+
+	// This value should have been set as default in the ToBlock method.
+	if genesisBlock.Difficulty().Cmp(params.GenesisDifficulty) != 0 {
+		t.Errorf("assumption wrong: want: %d, got: %v", params.GenesisDifficulty, genesisBlock.Difficulty())
+	}
+
+	// Expect the stored total difficulty to be the difficulty of the genesis block.
+	stored := rawdb.ReadTd(db, genesisBlock.Hash(), genesisBlock.NumberU64())
+
+	if stored.Cmp(genesisBlock.Difficulty()) != 0 {
+		t.Errorf("inequal difficulty; stored: %v, genesisBlock: %v", stored, genesisBlock.Difficulty())
+	}
+}