diff --git a/ckanext/jsonpreview/tests/test_preview.py b/ckanext/jsonpreview/tests/test_preview.py
index c34794be948..8da18419980 100644
--- a/ckanext/jsonpreview/tests/test_preview.py
+++ b/ckanext/jsonpreview/tests/test_preview.py
@@ -1,7 +1,7 @@
 import pylons
-
 import paste.fixture
-from pylons import config
+
+import pylons.config as config
 
 import ckan.logic as logic
 import ckan.model as model
@@ -83,7 +83,7 @@ def test_js_included(self):
         result = self.app.get(url, status='*')
 
         assert result.status == 200, result.status
-        assert 'preview_json.min.js' in result.body, result.body
+        assert (('preview_json.js' in result.body) or ('preview_json.min.js' in result.body)), result.body
         assert 'preload_resource' in result.body, result.body
         assert 'data-module="jsonpreview"' in result.body, result.body
 
diff --git a/ckanext/pdfpreview/tests/test_preview.py b/ckanext/pdfpreview/tests/test_preview.py
index 42703de80c1..691f7d960d5 100644
--- a/ckanext/pdfpreview/tests/test_preview.py
+++ b/ckanext/pdfpreview/tests/test_preview.py
@@ -1,7 +1,7 @@
 import pylons
-
 import paste.fixture
-from pylons import config
+
+import pylons.config as config
 
 import ckan.logic as logic
 import ckan.model as model
@@ -86,7 +86,7 @@ def test_js_included(self):
         result = self.app.get(url, status='*')
 
         assert result.status == 200, result.status
-        assert 'preview_pdf.min.js' in result.body, result.body
+        assert (('preview_pdf.js' in result.body) or ('preview_pdf.min.js' in result.body)), result.body
         assert 'preload_resource' in result.body, result.body
         assert 'data-module="pdfpreview"' in result.body, result.body
 
diff --git a/ckanext/reclinepreview/tests/test_preview.py b/ckanext/reclinepreview/tests/test_preview.py
index bc7ad02bc62..0e4b90a4afa 100644
--- a/ckanext/reclinepreview/tests/test_preview.py
+++ b/ckanext/reclinepreview/tests/test_preview.py
@@ -1,7 +1,7 @@
 import pylons
-
 import paste.fixture
-from pylons import config
+
+import pylons.config as config
 
 import ckan.logic as logic
 import ckan.model as model
@@ -115,7 +115,7 @@ def test_js_included(self):
         result = self.app.get(url, status='*')
 
         assert result.status == 200, result.status
-        assert 'preview_recline.min.js' in result.body, result.body
+        assert (('preview_recline.js' in result.body) or ('preview_recline.min.js' in result.body)), result.body
         assert 'preload_resource' in result.body, result.body
         assert 'data-module="reclinepreview"' in result.body, result.body