diff --git a/tests/study/test_study_details.py b/tests/study/test_study_details.py
index 7d142515..0b7538c9 100644
--- a/tests/study/test_study_details.py
+++ b/tests/study/test_study_details.py
@@ -5,7 +5,7 @@ from SpiffWorkflow.bpmn.PythonScriptEngine import Box
 from tests.base_test import BaseTest
 from unittest.mock import patch
 
-from crc import db, session
+from crc import app, session
 from crc.api.common import ApiError
 from crc.models.file import FileDataModel, FileModel
 from crc.models.protocol_builder import ProtocolBuilderRequiredDocumentSchema, ProtocolBuilderStudySchema
@@ -30,6 +30,7 @@ class TestStudyDetailsScript(BaseTest):
         self.task = self.processor.next_task()
 
     def test_study_info_returns_a_box_object_for_all_validations(self):
+        app.config['PB_ENABLED'] = True
         for option in StudyInfo.type_options:
             data = StudyInfo().do_task_validate_only(self.task, self.study.id, self.workflow_model.id, option)
             if isinstance(data, list):
diff --git a/tests/test_verify_end_event.py b/tests/test_verify_end_event.py
index 18069f99..0d431b58 100644
--- a/tests/test_verify_end_event.py
+++ b/tests/test_verify_end_event.py
@@ -1,12 +1,13 @@
 from tests.base_test import BaseTest
+from crc import app
 from crc.services.workflow_service import WorkflowService
 from crc.api.common import ApiError
-from jinja2.exceptions import TemplateSyntaxError
 
 
 class TestValidateEndEvent(BaseTest):
 
     def test_validate_end_event(self):
+        app.config['PB_ENABLED'] = True
 
         error_string = """Error processing template for task EndEvent_1qvyxg7: expected token 'end of statement block', got '='"""
 
diff --git a/tests/workflow/test_workflow_infinite_loop.py b/tests/workflow/test_workflow_infinite_loop.py
index a9846084..cd9fdd4a 100644
--- a/tests/workflow/test_workflow_infinite_loop.py
+++ b/tests/workflow/test_workflow_infinite_loop.py
@@ -6,6 +6,7 @@ import json
 class TestWorkflowInfiniteLoop(BaseTest):
 
     def test_workflow_infinite_loop(self):
+        app.config['PB_ENABLED'] = True
         self.load_example_data()
         spec_model = self.load_test_spec('infinite_loop')
         rv = self.app.get('/v1.0/workflow-specification/%s/validate' % spec_model.id, headers=self.logged_in_headers())