diff --git a/test/integration/test_workflow_invocation.py b/test/integration/test_workflow_invocation.py
index 70d0d541e83b..72276bf77979 100644
--- a/test/integration/test_workflow_invocation.py
+++ b/test/integration/test_workflow_invocation.py
@@ -110,7 +110,7 @@ def test_run_workflow_with_missing_tool(self):
             )
             self._assert_status_code_is(invocation_response, 400)
             assert (
-                invocation_response.json().get("detail")
+                invocation_response.json().get("err_msg")
                 == "Workflow was not invoked; the following required tools are not installed: nonexistent_tool (version 0.1), compose_text_param (version 0.0.1)"
             )
             # should fail but return only the tool_id of non_existent tool as another version of compose_text_param is installed
@@ -119,6 +119,6 @@ def test_run_workflow_with_missing_tool(self):
             )
             self._assert_status_code_is(invocation_response, 400)
             assert (
-                invocation_response.json().get("detail")
+                invocation_response.json().get("err_msg")
                 == "Workflow was not invoked; the following required tools are not installed: nonexistent_tool"
             )