diff --git a/app/cli/internal/action/workflow_run_list.go b/app/cli/internal/action/workflow_run_list.go
index 3bd5d1048..64b18400a 100644
--- a/app/cli/internal/action/workflow_run_list.go
+++ b/app/cli/internal/action/workflow_run_list.go
@@ -110,14 +110,18 @@ func pbWorkflowRunItemToAction(in *pb.WorkflowRunItem) *WorkflowRunItem {
 }
 
 func humanizedRunnerType(in v1.CraftingSchema_Runner_RunnerType) string {
-	switch in {
-	case *v1.CraftingSchema_Runner_GITHUB_ACTION.Enum():
-		return "GitHub"
-	case *v1.CraftingSchema_Runner_GITLAB_PIPELINE.Enum():
-		return "GitLab"
-	case *v1.CraftingSchema_Runner_AZURE_PIPELINE.Enum():
-		return "Azure Pipeline"
-	default:
-		return "Unspecified"
+	mapping := map[v1.CraftingSchema_Runner_RunnerType]string{
+		*v1.CraftingSchema_Runner_RUNNER_TYPE_UNSPECIFIED.Enum(): "Unspecified",
+		*v1.CraftingSchema_Runner_GITHUB_ACTION.Enum():           "GitHub",
+		*v1.CraftingSchema_Runner_GITLAB_PIPELINE.Enum():         "GitLab",
+		*v1.CraftingSchema_Runner_AZURE_PIPELINE.Enum():          "Azure Pipeline",
+		*v1.CraftingSchema_Runner_JENKINS_JOB.Enum():             "Jenkins Job",
 	}
+
+	hrt, ok := mapping[in]
+	if !ok {
+		return "Unknown"
+	}
+
+	return hrt
 }
diff --git a/app/cli/internal/action/workflow_run_list_test.go b/app/cli/internal/action/workflow_run_list_test.go
new file mode 100644
index 000000000..ab6ba318f
--- /dev/null
+++ b/app/cli/internal/action/workflow_run_list_test.go
@@ -0,0 +1,83 @@
+//
+// Copyright 2023 The Chainloop Authors.
+//
+// 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 action
+
+import (
+	"testing"
+
+	v1 "github.com/chainloop-dev/chainloop/app/controlplane/api/workflowcontract/v1"
+	"github.com/stretchr/testify/suite"
+)
+
+type workflowRunListSuite struct {
+	suite.Suite
+}
+
+func (s *workflowRunListSuite) TestHumanizedRunnerType() {
+	testCases := []struct {
+		name           string
+		testInput      v1.CraftingSchema_Runner_RunnerType
+		expectedOutput string
+	}{
+		{
+			name:           "unspecified runner",
+			testInput:      v1.CraftingSchema_Runner_RUNNER_TYPE_UNSPECIFIED,
+			expectedOutput: "Unspecified",
+		}, {
+			name:           "github runner",
+			testInput:      v1.CraftingSchema_Runner_GITHUB_ACTION,
+			expectedOutput: "GitHub",
+		}, {
+			name:           "gitlab runner",
+			testInput:      v1.CraftingSchema_Runner_GITLAB_PIPELINE,
+			expectedOutput: "GitLab",
+		}, {
+			name:           "azure runner",
+			testInput:      v1.CraftingSchema_Runner_AZURE_PIPELINE,
+			expectedOutput: "Azure Pipeline",
+		}, {
+			name:           "jenkins runner",
+			testInput:      v1.CraftingSchema_Runner_JENKINS_JOB,
+			expectedOutput: "Jenkins Job",
+		}, {
+			name:           "unknown runner",
+			testInput:      -34,
+			expectedOutput: "Unknown",
+		},
+	}
+
+	// enforce 1 test case per runner (+ the unknown)
+	nRunnerTypes := len(v1.CraftingSchema_Runner_RunnerType_name)
+	nTestCases := len(testCases)
+	s.Equal(
+		nTestCases-1,
+		nRunnerTypes,
+		"%d runners detected vs. %d test entries",
+		nRunnerTypes,
+		nTestCases-1,
+	)
+
+	for _, testCase := range testCases {
+		s.T().Run(testCase.name, func(t *testing.T) {
+			result := humanizedRunnerType(testCase.testInput)
+			s.Equal(testCase.expectedOutput, result)
+		})
+	}
+}
+
+func TestWorkflowRunlist(t *testing.T) {
+	suite.Run(t, new(workflowRunListSuite))
+}