diff --git a/src/Nethermind/Nethermind.Optimism.Test/OptimismProtocolVersionTest.cs b/src/Nethermind/Nethermind.Optimism.Test/OptimismProtocolVersionTest.cs
index 264f015b03f..66454cff342 100644
--- a/src/Nethermind/Nethermind.Optimism.Test/OptimismProtocolVersionTest.cs
+++ b/src/Nethermind/Nethermind.Optimism.Test/OptimismProtocolVersionTest.cs
@@ -129,6 +129,21 @@ public void OptimismProtocolVersion_Throws_Unknown_Version(byte version)
         read.Should().Throw<OptimismProtocolVersion.ParseException>();
     }
 
+
+    private static IEnumerable<(string, OptimismProtocolVersion.V0)> V0FromStringCases()
+    {
+        yield return ("3.1.0", new(new byte[8], 3, 1, 0, 0));
+        yield return ("1.1.1", new(new byte[8], 1, 1, 1, 0));
+        yield return ("1.1.1.16", new(new byte[8], 1, 1, 1, 16));
+        yield return ("1.26.0.4", new(new byte[8], 1, 26, 0, 4));
+    }
+    [TestCaseSource(nameof(V0FromStringCases))]
+    public void OptimismProtocolVersionV0_FromStringVersion((string Version, OptimismProtocolVersion.V0 Expected) testCase)
+    {
+        var actual = new OptimismProtocolVersion.V0(testCase.Version);
+        actual.Should().Be(testCase.Expected);
+    }
+
     [Test]
     public void OptimismProtocolVersionV0_FromProductInfoVersion()
     {
diff --git a/src/Nethermind/Nethermind.Optimism/ProtocolVersion/OptimismProtocolVersion.cs b/src/Nethermind/Nethermind.Optimism/ProtocolVersion/OptimismProtocolVersion.cs
index 6716fe7693e..cd55ff0a851 100644
--- a/src/Nethermind/Nethermind.Optimism/ProtocolVersion/OptimismProtocolVersion.cs
+++ b/src/Nethermind/Nethermind.Optimism/ProtocolVersion/OptimismProtocolVersion.cs
@@ -71,13 +71,13 @@ public V0(ReadOnlySpan<byte> build, string version)
             if (build.Length != 8) throw new ArgumentException($"Expected build identifier to be 8 bytes long, got {build.Length}", nameof(build));
 
             var parts = version.Split('.').Select(uint.Parse).ToList();
-            if (parts.Count != 4) throw new ArgumentException($"Invalid version format '{version}'", nameof(version));
+            if (parts.Count is < 3 or > 4) throw new ArgumentException($"Invalid version format '{version}'", nameof(version));
 
             Build = build.ToArray();
             Major = parts[0];
             Minor = parts[1];
             Patch = parts[2];
-            PreRelease = parts[3];
+            PreRelease = parts.Count == 4 ? parts[3] : 0;
         }
 
         public V0(string version) : this(new byte[8], version) { }