diff --git a/pkg/model/workflow.go b/pkg/model/workflow.go
index d7e2922..35e4587 100644
--- a/pkg/model/workflow.go
+++ b/pkg/model/workflow.go
@@ -123,7 +123,8 @@ type WorkflowCallResult struct {
 
 func (w *Workflow) WorkflowCallConfig() *WorkflowCall {
 	if w.RawOn.Kind != yaml.MappingNode {
-		return nil
+		// The callers expect for "on: workflow_call" and "on: [ workflow_call ]" a non nil return value
+		return &WorkflowCall{}
 	}
 
 	var val map[string]yaml.Node
diff --git a/pkg/runner/testdata/.github/workflows/local-reusable-workflow-no-inputs-array.yml b/pkg/runner/testdata/.github/workflows/local-reusable-workflow-no-inputs-array.yml
new file mode 100644
index 0000000..3df4ae3
--- /dev/null
+++ b/pkg/runner/testdata/.github/workflows/local-reusable-workflow-no-inputs-array.yml
@@ -0,0 +1,10 @@
+name: reusable
+
+on:
+- workflow_call
+
+jobs:
+  reusable_workflow_job:
+    runs-on: ubuntu-latest
+    steps:
+    - run: echo Test
\ No newline at end of file
diff --git a/pkg/runner/testdata/.github/workflows/local-reusable-workflow-no-inputs-string.yml b/pkg/runner/testdata/.github/workflows/local-reusable-workflow-no-inputs-string.yml
new file mode 100644
index 0000000..7558c1c
--- /dev/null
+++ b/pkg/runner/testdata/.github/workflows/local-reusable-workflow-no-inputs-string.yml
@@ -0,0 +1,9 @@
+name: reusable
+
+on: workflow_call
+
+jobs:
+  reusable_workflow_job:
+    runs-on: ubuntu-latest
+    steps:
+    - run: echo Test
\ No newline at end of file
diff --git a/pkg/runner/testdata/uses-workflow/local-workflow.yml b/pkg/runner/testdata/uses-workflow/local-workflow.yml
index 070e4d0..2e9a08d 100644
--- a/pkg/runner/testdata/uses-workflow/local-workflow.yml
+++ b/pkg/runner/testdata/uses-workflow/local-workflow.yml
@@ -19,6 +19,12 @@ jobs:
       number_required: 1
     secrets: inherit
 
+  reusable-workflow-with-on-string-notation:
+    uses: ./.github/workflows/local-reusable-workflow-no-inputs-string.yml
+
+  reusable-workflow-with-on-array-notation:
+    uses: ./.github/workflows/local-reusable-workflow-no-inputs-array.yml
+
   output-test:
     runs-on: ubuntu-latest
     needs: