diff --git a/pkg/unikontainers/unikernels/unikraft.go b/pkg/unikontainers/unikernels/unikraft.go
index 7bc02a7ad..f4ed23ab1 100644
--- a/pkg/unikontainers/unikernels/unikraft.go
+++ b/pkg/unikontainers/unikernels/unikraft.go
@@ -147,7 +147,7 @@ func (u *Unikraft) configureUnikraftArgs(rootFsType, ethDeviceIP, ethDeviceGatew
 	unikernelVersion, err := version.NewVersion(u.Version)
 	if err != nil {
 		setCurrentArgs()
-		return ErrVersionParsing
+		return fmt.Errorf("%w: %w", ErrVersionParsing, err)
 	}
 
 	targetVersion, err := version.NewVersion(UnikraftCompatVersion)
diff --git a/pkg/unikontainers/unikernels/unikraft_test.go b/pkg/unikontainers/unikernels/unikraft_test.go
new file mode 100644
index 000000000..020317e7f
--- /dev/null
+++ b/pkg/unikontainers/unikernels/unikraft_test.go
@@ -0,0 +1,67 @@
+// Copyright (c) 2023-2026, Nubificus LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package unikernels
+
+import (
+	"errors"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/urunc-dev/urunc/pkg/unikontainers/types"
+)
+
+func TestUnikraftVersionParsing(t *testing.T) {
+	t.Run("empty version returns ErrUndefinedVersion", func(t *testing.T) {
+		u := newUnikraft()
+		err := u.Init(types.UnikernelParams{
+			Version: "",
+			Net:     types.NetDevParams{IP: "10.0.0.2", Gateway: "10.0.0.1", Mask: "255.255.255.0"},
+		})
+		assert.True(t, errors.Is(err, ErrUndefinedVersion))
+	})
+
+	t.Run("invalid version returns wrapped ErrVersionParsing with details", func(t *testing.T) {
+		u := newUnikraft()
+		invalidVersion := "invalid.version.string!!!"
+		err := u.Init(types.UnikernelParams{
+			Version: invalidVersion,
+			Net:     types.NetDevParams{IP: "10.0.0.2", Gateway: "10.0.0.1", Mask: "255.255.255.0"},
+		})
+		assert.Error(t, err)
+		assert.True(t, errors.Is(err, ErrVersionParsing), "errors.Is should identify ErrVersionParsing")
+		assert.Contains(t, err.Error(), ErrVersionParsing.Error())
+		assert.Contains(t, err.Error(), "malformed version: invalid.version.string!!!")
+	})
+
+	t.Run("valid new version configures current args", func(t *testing.T) {
+		u := newUnikraft()
+		err := u.Init(types.UnikernelParams{
+			Version: "0.17.0",
+			Net:     types.NetDevParams{IP: "10.0.0.2", Gateway: "10.0.0.1", Mask: "255.255.255.0"},
+		})
+		assert.NoError(t, err)
+		assert.Contains(t, u.Net.Address, "netdev.ip=")
+	})
+
+	t.Run("valid legacy version configures compat args", func(t *testing.T) {
+		u := newUnikraft()
+		err := u.Init(types.UnikernelParams{
+			Version: "0.15.0",
+			Net:     types.NetDevParams{IP: "10.0.0.2", Gateway: "10.0.0.1", Mask: "255.255.255.0"},
+		})
+		assert.NoError(t, err)
+		assert.Contains(t, u.Net.Address, "netdev.ipv4_addr=")
+	})
+}