diff --git a/ros_buildfarm/ci_job.py b/ros_buildfarm/ci_job.py
index 27fb77409..7bd68594a 100644
--- a/ros_buildfarm/ci_job.py
+++ b/ros_buildfarm/ci_job.py
@@ -29,6 +29,7 @@
 from ros_buildfarm.config import get_ci_build_files
 from ros_buildfarm.config import get_index as get_config_index
 from ros_buildfarm.git import get_repository
+from ros_buildfarm.jenkins import JenkinsProxy
 from ros_buildfarm.templates import expand_template
 from rosdistro import get_index
 
@@ -80,7 +81,7 @@ def _configure_ci_jobs(
         ci_view_name: configure_ci_view(
             jenkins, ci_view_name, dry_run=dry_run)
     }
-    if not jenkins:
+    if not isinstance(jenkins, JenkinsProxy):
         view_configs.update(views)
     groovy_data = {
         'dry_run': dry_run,
diff --git a/ros_buildfarm/devel_job.py b/ros_buildfarm/devel_job.py
index 87a9d74c3..67b556b43 100644
--- a/ros_buildfarm/devel_job.py
+++ b/ros_buildfarm/devel_job.py
@@ -33,6 +33,7 @@
 from ros_buildfarm.config import get_index as get_config_index
 from ros_buildfarm.config import get_source_build_files
 from ros_buildfarm.git import get_repository
+from ros_buildfarm.jenkins import JenkinsProxy
 from ros_buildfarm.templates import expand_template
 from rosdistro import get_distribution_cache
 from rosdistro import get_index
@@ -90,7 +91,7 @@ def configure_devel_jobs(
     if build_file.test_pull_requests_force is not False:
         views[pull_request_view_name] = configure_devel_view(
             jenkins, pull_request_view_name, dry_run=dry_run)
-    if not jenkins:
+    if not isinstance(jenkins,JenkinsProxy):
         view_configs.update(views)
     groovy_data = {
         'dry_run': dry_run,
diff --git a/ros_buildfarm/doc_job.py b/ros_buildfarm/doc_job.py
index f51a5b652..ced8f85ad 100644
--- a/ros_buildfarm/doc_job.py
+++ b/ros_buildfarm/doc_job.py
@@ -33,6 +33,7 @@
 from ros_buildfarm.config import get_global_doc_build_files
 from ros_buildfarm.config import get_index as get_config_index
 from ros_buildfarm.git import get_repository
+from ros_buildfarm.jenkins import JenkinsProxy
 from ros_buildfarm.templates import expand_template
 from rosdistro import get_distribution_cache
 from rosdistro import get_index
@@ -83,7 +84,7 @@ def configure_doc_jobs(
     views = {}
     views[doc_view_name] = configure_doc_view(
         jenkins, doc_view_name, dry_run=dry_run)
-    if not jenkins:
+    if not isinstance(jenkins, JenkinsProxy):
         view_configs.update(views)
     groovy_data = {
         'dry_run': dry_run,
diff --git a/ros_buildfarm/jenkins.py b/ros_buildfarm/jenkins.py
index 50e4c0496..edf0451a3 100644
--- a/ros_buildfarm/jenkins.py
+++ b/ros_buildfarm/jenkins.py
@@ -90,7 +90,7 @@ def configure_view(
     view_config = get_view_config(
         template_name, view_name, include_regex=include_regex,
         filter_queue=filter_queue)
-    if not jenkins:
+    if not isinstance(jenkins, JenkinsProxy):
         _cached_views[key] = view_config
         return view_config
     view_type = _get_view_type(view_config)
diff --git a/ros_buildfarm/release_job.py b/ros_buildfarm/release_job.py
index 69e54031d..afcf7980a 100644
--- a/ros_buildfarm/release_job.py
+++ b/ros_buildfarm/release_job.py
@@ -42,6 +42,7 @@
 from ros_buildfarm.config import get_distribution_file
 from ros_buildfarm.config import get_index as get_config_index
 from ros_buildfarm.config import get_release_build_files
+from ros_buildfarm.jenkins import JenkinsProxy
 from ros_buildfarm.git import get_repository
 from ros_buildfarm.package_repo import get_package_repo_data
 from ros_buildfarm.templates import expand_template
@@ -144,14 +145,14 @@ def configure_release_jobs(
             job_name, job_config = configure_import_package_job(
                 config_url, rosdistro_name, release_build_name,
                 config=config, build_file=build_file, jenkins=jenkins, dry_run=dry_run)
-            if not jenkins:
+            if not isinstance(jenkins, JenkinsProxy):
                 all_job_configs[job_name] = job_config
             break
 
     job_name, job_config = configure_sync_packages_to_main_job(
         config_url, rosdistro_name, release_build_name,
         config=config, build_file=build_file, jenkins=jenkins, dry_run=dry_run)
-    if not jenkins:
+    if not isinstance(jenkins, JenkinsProxy):
         all_job_configs[job_name] = job_config
 
     for os_name, os_code_name in platforms:
@@ -161,7 +162,7 @@ def configure_release_jobs(
                 os_name, os_code_name, arch,
                 config=config, build_file=build_file, jenkins=jenkins,
                 dry_run=dry_run)
-            if not jenkins:
+            if not isinstance(jenkins, JenkinsProxy):
                 all_job_configs[job_name] = job_config
 
     targets = []
@@ -172,7 +173,7 @@ def configure_release_jobs(
     views = configure_release_views(
         jenkins, rosdistro_name, release_build_name, targets,
         dry_run=dry_run)
-    if not jenkins:
+    if not isinstance(jenkins, JenkinsProxy):
         all_view_configs.update(views)
     groovy_data = {
         'dry_run': dry_run,