diff --git a/CIME/SystemTests/eri.py b/CIME/SystemTests/eri.py
index 609dbcedea2..e5e27390c0b 100644
--- a/CIME/SystemTests/eri.py
+++ b/CIME/SystemTests/eri.py
@@ -1,6 +1,7 @@
 """
 CIME ERI test  This class inherits from SystemTestsCommon
 """
+
 from CIME.XML.standard_module_setup import *
 from CIME.utils import safe_copy
 from CIME.SystemTests.system_tests_common import SystemTestsCommon
@@ -34,7 +35,7 @@ def _helper(dout_sr, refdate, refsec, rundir):
             os.mkdir(rundir)
         elif os.path.exists(dst):
             os.remove(dst)
-        if not 'rpointer' in item:
+        if not "rpointer" in item:
             os.symlink(item, dst)
 
     for item in glob.glob("{}/*rpointer*".format(rest_path)):