diff --git a/tests/test_redshift_backend.py b/tests/test_redshift_backend.py
index 8a0d175..d963f3f 100644
--- a/tests/test_redshift_backend.py
+++ b/tests/test_redshift_backend.py
@@ -9,10 +9,7 @@
 
 
 def norm_sql(sql):
-    r = sql
-    r = r.replace(' ', '')
-    r = r.replace('\n', '')
-    return r
+    return ' '.join(sql.split()).replace('( ', '(').replace(' )', ')').replace(' ;', ';')
 
 
 class DatabaseWrapperTest(unittest.TestCase):