X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/59a7af19f6889e79b1b9a4348e9253f3fa0f50c3..49f27beea17ab1ef448f3c485dcdf9bea0a740b9:/src/models/workflow.ts

diff --git a/src/models/workflow.ts b/src/models/workflow.ts
index 4fc70419e5..8d0b37de21 100644
--- a/src/models/workflow.ts
+++ b/src/models/workflow.ts
@@ -122,7 +122,8 @@ export const parseWorkflowDefinition = (workflow: WorkflowResource): WorkflowRes
 };
 
 export const getWorkflowInputs = (workflowDefinition: WorkflowResourceDefinition) => {
-    const mainWorkflow = workflowDefinition.$graph!.find(item => item.class === 'Workflow' && item.id === '#main');
+    if (!workflowDefinition.$graph) { return undefined; }
+    const mainWorkflow = workflowDefinition.$graph.find(item => item.class === 'Workflow' && item.id === '#main');
     return mainWorkflow
         ? mainWorkflow.inputs
         : undefined;